How to hide and display inline element using javascript

How to hide and display inline element using javascript - javascript

I have a inline element. I am trying to hide and show it using button. But when I click document.getElementById('').style.display = 'inline'; I'm getting block elements. How to get the element inline as it was set before.
my code looks like;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
#mydata{
display:none;
font-size: 25;
}
.chartCard {
width: 100vw;
height: calc(90vh - 100px);
background: rgb(133, 43, 43);
display: flex;
align-items: center;
justify-content: center;
}
.chartBox {
width: 650px;
padding: 8px;
border-radius: 20px;
margin: 1px 22px;
border: solid 3px rgba(255, 26, 104, 1);
background: white;
}
.button:hover{
background-color: #005201;
color: rgb(255, 253, 250);;
}
.button {
background-color: rgb(69, 9, 188);
border: none;
color: white;
padding: 16px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 20px;
margin: 2px 2px;
transition-duration: 0.4s;
cursor: pointer;
}
</style>
<script>
function changedata(parameter){
if(parameter==0){
document.getElementById('myreport').style.display = 'none';
document.getElementById('mydata').style.display = 'block';
}
else{
document.getElementById('mydata').style.display = 'none';
document.getElementById('myreport').style.display = 'inline';
}
}
</script>
</head>
<body>
<button class="button" onclick="changedata(1)">Myreport</button>
<button class="button" onclick="changedata(0)">Mydata</button>
<div id="mydata">
<h1>This is my Report</h1>
</div>
<div class="chartCard" id="myreport">
<div class="chartBox">
<p>Ram</p>
</div>
<div class="chartBox">
<p>Shyam</p>
</div>
</div>
</body>
</html>
So, as you can see as I click button, inline element are getting converted to block element. how to resolve it. looking for your help. Thanks in advance

Update your function to set display to flex for myreport, initially you have set display:flex for .chartCard
function changedata(parameter) {
if (parameter == 0) {
document.getElementById('myreport').style.display = 'none';
document.getElementById('mydata').style.display = 'block';
} else {
document.getElementById('mydata').style.display = 'none';
document.getElementById('myreport').style.display = 'flex';
}
}
fiddle here: https://jsfiddle.net/fhps08re/

You are using display:flex so you have to set it back.
Also, you don't need js to hide or show your sections, you can use :target.
.menu{
display:flex;
}
a{
margin-right:20px;
}
.section{
padding:20px;
width:fit-content;
border: 1px solid black;
display:none;
}
.section:target{
display:block;
}
<div class="menu">
go to A
go to B
go to C
</div>
<br>
<div id="a" class="section">Section A</div>
<div id="b" class="section">Section B</div>
<div id="c" class="section">Section C</div>

when you click on button, your 'myreport' element get display: 'inline'. it's work correct. because your elements with 'chartBox' class is div and div has display: block in its default css, the elements shows in two line.
use this to correct :
when you click the button, instead of set display to inline, set display to flex. as you do this in your css.
function changedata(parameter){
if(parameter==0){
document.getElementById('myreport').style.display = 'none';
document.getElementById('mydata').style.display = 'block';
}
else{
document.getElementById('mydata').style.display = 'none';
document.getElementById('myreport').style.display = 'flex';
}
}
or you can use span instead of div with class: 'chartBox'

Related

Button click open and close function not working

Using Javascript to open and close a navbar but it's not working in my new project
When i use devtools i can see the function active but my nav bar does not open or close. So funny because i've used it for an old project which is working fine. I have no idea why this time it's frustrating. I need your help please if any
This is the js code
let Menupopupup = document.getElementById("dropdownheadernav");
function opendropdownheadernav() {
Menupopupup.classList.add("Openmenudrops");
document.body.style.overflow = "hidden";
}
function closedropdownheadernav() {
Menupopupup.classList.remove("Openmenudrops");
document.body.style.overflow = "auto";
}
This is my HTML
<nav class="firstnavigationbar">
<button id="Showscroll" type="submit" class="barsbutton" onclick="opendropdownheadernav()">
<div class="barbtnimagecontainer" >
<img class="barbtn"
src="./B-NFT-IMGS/Screenshot 2022-11-29 at 07.00.30.png"
height="23"
width="22"
alt=""
/></div></button>
<ul class="firstunorderedlist" id="dropdownheadernav">
<button id="Closescroll" type="button" class="closemenubutton" onclick="closedropdownheadernav()"><span class="closemenuspan">&#x2715</span></button>
This is my Css
.firstunorderedlist {
margin-top: -40px;
display: none;
color: #1e2329;
list-style: none;
line-height: 3.5;
background-color: #fff;
width: 320px;
overflow: hidden;
}

The element UL must be closed with /ul. As for javascript, you need to find the element by id and then use style.display and make it equal to the desired value. I attached the neatified code below. It does what you need and is made shorter.
<!DOCTYPE html>
<html>
<head>
<style>
.firstunorderedlist {
margin-top: -40px;
display: none;
color: #1e2329;
list-style: none;
line-height: 3.5;
background-color: #fff;
width: 320px;
overflow: hidden;
}
</style>
</head>
<body>
<nav class="firstnavigationbar">
<button id="Showscroll" type="submit" class="barsbutton" onclick="openNav()">
<div class="barbtnimagecontainer" >
<img class="barbtn"
src="./B-NFT-IMGS/Screenshot 2022-11-29 at 07.00.30.png"
height="23"
width="22"
alt="">
</div>
</button>
<ul class="firstunorderedlist" id="dropdownheadernav">
<li>Code</li>
<li>Goes</li>
<li>Here</li>
</ul>
<button id="Closescroll" type="button" class="closemenubutton" onclick="openNav()">
<span class="closemenuspan">&#x2715</span>
</button>
<script>
let navOpened = false;
function openNav() {
if (navOpened) {
navOpened = false;
document.getElementById("dropdownheadernav").style.display = 'none';
} else {
navOpened = true;
document.getElementById("dropdownheadernav").style.display = 'initial';
}
}
</script>
</body>
</html>

function myFunction() {
var x = document.getElementById("myLinks");
if (x.style.display === "block") {
x.style.display = "none";
} else {
x.style.display = "block";
}
}
.mobile-container {
max-width: 480px;
margin: auto;
background-color: blue;
height: 500px;
color: white;
border-radius: 10px;
}
.topnav {
overflow: hidden;
background-color: red;
position: relative;
}
.topnav #myLinks {
display: none;
}
.topnav a {
color: white;
padding: 14px 16px;
text-decoration: none;
font-size: 17px;
display: block;
}
.topnav a.icon {
background: black;
display: block;
position: absolute;
right: 0;
top: 0;
}
.topnav a:hover {
background-color: #ddd;
color: black;
}
.active {
background-color: #04AA6D;
color: white;
}
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<body>
<div class="mobile-container">
<div class="topnav">
Navbar
<div id="myLinks">
News
Contact
About
</div>
<a href="javascript:void(0);" class="icon" onclick="myFunction()">
<i class="fa fa-bars"></i>
</a>
</div>
<div style="padding-left:16px">
<h3>Vertical Mobile Navbar</h3>
<p>This example demonstrates how a navigation menu on a mobile/smart phone could look like.</p>
<p>Click on the hamburger menu (three bars) in the top right corner, to toggle the menu.</p>
</div>
</div>
</body>
<html>

JS eventListener clicking problems

I just need some help with this small header of my project. I decided to include all the header files so you can run it in snippet and check for yourself what is happening. The only thing that I have having problem with is my JS file. If you run the file, you would get a menu bar and a shopping cart on top, I designed them to not open up at the same time hence the if else statements. Now the problem is after the web page loads, I cannot open the menu bar right away no matter how many times I click it. But, if I try to click the shopping cart, it would require two clicks before it drops down and works. But here's the weird part, after the shopping cart has dropped down, the menu bar would now work. After this occurrence, everything works the way they are intended to work. A little help please, I am currently stuck on this one. Thanks!
var showShoppingBtn = document.getElementById('shopping-cart');
var showShopping = document.getElementById('top-dropdown');
showShoppingBtn.addEventListener('click', ()=>{
if(showShopping.style.display == 'none' && showMenu.style.display == 'none'){
showShopping.style.display = 'block';
}
else if(showShopping.style.display == 'none' && showMenu.style.display == 'block'){
showMenu.style.display = 'none';
showShopping.style.display = 'block';
}
else {
showShopping.style.display = 'none';
}
});
var menuBtn = document.getElementById('menu-button');
var showMenu = document.getElementById('bottom-dropdown');
menuBtn.addEventListener('click', ()=>{
if(showMenu.style.display == 'none' && showShopping.style.display == 'none'){
showMenu.style.display = 'block';
} else if(showMenu.style.display == 'none' && showShopping.style.display == 'block'){
showShopping.style.display = 'none';
showMenu.style.display = 'block';
} else {
showMenu.style.display = 'none';
}
});
#import url("https://fonts.googleapis.com/css2?family=Montserrat:wght#400;700&display=swap");
body {
font-family: "Montserrat", sans-serif;
margin:0;
padding: 0;
}
.top-content{
background: orange;
display: flex;
}
.shopping-menu{
width: 100%;
}
#shopping-cart{
font-size: 2.5em;
cursor: pointer;
padding-right: 0;
float: right;
margin-right: 1em;
}
.top ul{
margin-top: 3em;
list-style: none;
margin-right: 1em;
}
.top li{
padding-right: 1.2em;
margin-bottom: .5em;
text-align: right;
text-transform: uppercase;
}
.top-content-container{
width: 100%;
}
.top-dropdown{
display: none;
}
.site-logo img{
position: absolute;
width: 100vw;
display: none;
}
.bottom{
background-color:#0e1338;
color: white;
display: flex;
position: relative;
}
.menu{
padding-right: 1em;
width: 100%;
}
.menu-button{
float: right;
cursor: pointer;
padding-right: 1em;
}
.bottom-content-container{
margin-left: auto;
margin-right: 0;
text-align: right;
padding-right: 1em;
}
.bottom-content-container ul{
list-style: none;
}
.menu-bar{
width: 3em;
height: .5em;
background-color: white;
margin: .5em 0;
}
.bottom-dropdown{
display: none;
margin-top: 4em;
text-align: right;
}
.bottom-dropdown li{
margin: .7em 0;
text-transform: uppercase;
}
.top li a{
color: black;
text-decoration: none;
}
.bottom li a{
text-decoration: none;
color: white;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<link rel="stylesheet" href="styles/header.css" />
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"
/>
</head>
<body>
<section class="top">
<div class="top-content">
<nav class="shopping-menu">
<i class="fa fa-shopping-cart" id="shopping-cart"></i>
<div class="top-content-container">
<div class="top-dropdown" id="top-dropdown">
<ul>
<li>Cart</li>
<li>Checkout</li>
<li>My Purchases</li>
</ul>
</div>
</nav>
</div>
</div>
</section>
<section class="bottom">
<div class="site-logo">
<img src="images/AutoNation-logo.png" alt="AutoNation Logo">
</div>
<nav class="menu">
<div class="menu-button" id="menu-button">
<div class="menu-bar"></div>
<div class="menu-bar"></div>
<div class="menu-bar"></div>
</div>
<div class="bottom-content-container">
<ul>
<div class="bottom-dropdown" id="bottom-dropdown">
<li>Services</li>
<li>Special Offers</li>
<li>Browse</li>
<li>Contact</li>
<li>Location</li>
<li>My Account</li>
</div>
</ul>
</nav>
</div>
</section>
<script src="scripts/header.js"></script>
</body>
</html>

It's because first time you entered the click function both style.display are not filled. so the condition
showShopping.style.display == 'none' && showMenu.style.display == 'none'
will not be evaluate
one quick solution to use your code is to initialize style.display at the end of the js part
showShopping.style.display = 'none';
showMenu.style.display = 'none'

When you do element.style.someStyle, you access only the inline style of the element. So the first time you click on showShoppingBtn it will pass in the last else -> setting the inline style of it to display: none.
A quick fix to that would be to add inline style directly in the html. like so :
<div class="top-dropdown" id="top-dropdown" style="display: <The defautl display you want>;">
And
<i class="fa fa-shopping-cart" id="shopping-cart" style="display: <The default display you want>;"></i>

Your HTML is invalid
You really should toggle a class. Add class hide to the menus and have .hide {display:none}
Then you can do
showShoppingBtn.addEventListener('click', () => {
showMenu.classList.add("hide")
showShopping.classList.toggle("hide")
});
menuBtn.addEventListener('click', () => {
showShopping.classList.add("hide")
showMenu.classList.toggle("hide")
});

How to include transitions with inline javascript 'style' changes?

My code shows and hides divs depending on which button the user clicks, implemented by simple myElement.style.display = 'none'; statements.
Can transitions be used when these divs are shown/hidden? I.e. when button-1 is clicked, text relating to button-1 fades into view; when button-2 is clicked, text relating to button-2 fades into view as the previous button-1 text fades out?
As is, the divs snap in and out of view. I am looking for a smoother transition.
I have attempted it with the code which is shown commented out. It just doesn't work. Any tips are much appreciated, thank you.
JS
var visibleDivId = null;
function divVisibility(divId) {
if(visibleDivId === divId) {
visibleDivId = null;
} else {
visibleDivId = divId;
}
hideNonVisibleDivs();
}
function hideNonVisibleDivs() {
var i, divId, div;
for(i = 0; i < divs.length; i++) {
divId = divs[i];
respoding_div = document.getElementById(divId);
if(visibleDivId == divId) {
respoding_div.style.display = 'block';
// respoding_div.style.transition = 'display 0.3s ease-in block'
}
else {
respoding_div.style.display = 'none';
// respoding_div.style.transition = 'display 0.3s ease-in none'
}
}
}
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="container" style="text-align:center; margin:0 auto;">
<div class="card-container" style="margin:0 auto; width:50%; display: flex; align-items: center; justify-content: center; padding-bottom:10px;">
<div class='accordion' onclick="divVisibility('Core1');">
<img src='https://img.icons8.com/dotty/2x/external-link-squared.png' width="50px">Button-1
</div>
<div class='accordion' onclick="divVisibility('Core2');">
<img src='https://img.icons8.com/dotty/2x/globe-earth.png' width="50px">Button-2
</div>
<div class='accordion' onclick="divVisibility('Core3');">
<img src='https://img.icons8.com/dotty/2x/torrent.png' width="50px">Button-3
</div>
</div>
<div class="all_divs">
<div id="Core1" class="subdiv" style="display:none;">TEXT #1</div>
<div id="Core2" class="subdiv" style="display:none;">TEXT #2</div>
<div id="Core3" class="subdiv" style="display:none;">TEXT #3</div>
</div>
</div>
</div>
</body>
</html>
CSS
body{
font-family: "IBM Plex Sans", sans-serif;
}
.accordion {
cursor: pointer;
border: none;
text-align: center;
outline: none;
font-size: 15px;
padding-left:100px;
padding-right:100px;
padding-top: 20px;
width: 80px;
}
.accordion:hover {
opacity: 0.7;
}
.accordion img {
width: 50px;
margin: 0 auto;
}
.all_divs > div {
color: #232f3e;
width: 95%;
text-align: center;
background-color:#fafafa;
position: absolute;
padding:2%;
border-top: 2px solid #e6e7e8;
}
h1{
font-weight: lighter;
color: #232f3e;
}
td{
padding: 2%;
}

it will not work not because of the syntax or something wrong in JS but because of the display property can't be transitioned from state to another. u can use opacity for that.

Hide and Un-hide div elements using javascript

i have two DIV named[DIV1,DIv2] inside my page , where i can hide and un-hide each one of them, now is it possible when page will load automatically DIV1 will show then Div2 will hide and when you click the button to show DIV2 then automatically DIV1 will hide. i have provided example below..
function myFunction1() {
var x = document.getElementById("myDIV1");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
function myFunction2() {
var x = document.getElementById("myDIV2");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
#myDIV1 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: blue;
margin-top: 20px;
}
#myDIV2 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: red;
margin-top: 20px;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<button onclick="myFunction1()">Div1</button>
<button onclick="myFunction2()">Div2</button>
<div id="myDIV1">
This is First Div.
</div>
<div id="myDIV2">
This is Second Div.
</div>
</body>
</html>

An ideal approach would be to create a class (hidden as in the example below) which hides a particular element. Assign this class initially to second div so that it doesn't appear when page loads.
Then you can add/remove this class on particular elements when the function runs, as desired.
See the demo below:
function myFunction1() {
var x = document.getElementById("myDIV1");
var y = document.getElementById("myDIV2");
x.classList.remove('hidden');
y.classList.add('hidden');
}
function myFunction2() {
var x = document.getElementById("myDIV1");
var y = document.getElementById("myDIV2");
y.classList.remove('hidden');
x.classList.add('hidden');
}
#myDIV1 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: blue;
margin-top: 20px;
}
#myDIV2 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: red;
margin-top: 20px;
}
.hidden {
display: none;
}
<button onclick="myFunction1()">Div1</button>
<button onclick="myFunction2()">Div2</button>
<div id="myDIV1">
This is First Div.
</div>
<div id="myDIV2" class="hidden">
This is Second Div.
</div>

Now at least one div will be there on the screen.
var x = document.getElementById("myDIV1");
var y = document.getElementById("myDIV2");
function myFunction1() {
x.style.display = "block";
y.style.display = "none";
}
function myFunction2() {
y.style.display = "block";
x.style.display = "none";
}
#myDIV1 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: blue;
margin-top: 20px;
}
#myDIV2 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: red;
margin-top: 20px;
display:none;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<button onclick="myFunction1()">Div1</button>
<button onclick="myFunction2()">Div2</button>
<div id="myDIV1">
This is First Div.
</div>
<div id="myDIV2">
This is Second Div.
</div>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
#myDIV1 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: blue;
margin-top: 20px;
}
#myDIV2 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: red;
margin-top: 20px;
display: none;
}
</style>
</head>
<body>
<button onclick="toggleDisplay()">Div1</button>
<button onclick="toggleDisplay()">Div2</button>
<div id="myDIV1">
This is First Div.
</div>
<div id="myDIV2">
This is Second Div.
</div>
<script>
function toggleDisplay() {
var div1 = document.getElementById("myDIV1");
var div2 = document.getElementById("myDIV2");
if (div1.style.display === "none") {
div1.style.display = "block";
div2.style.display = "none";
} else {
div1.style.display = "none";
div2.style.display = "block";
}
}
</script>
</body>
</html>
you can have one function to handle this though :-)
toggling block and none for display css

If you are using bootstrap4 then there is already 'd-none' class. you can use that. check below snippet.
function myFunction1() {
var x = document.getElementById("myDIV1");
var y = document.getElementById("myDIV2");
x.classList.remove("d-none");
y.classList.add("d-none");
}
function myFunction2() {
var x = document.getElementById("myDIV1");
var y = document.getElementById("myDIV2");
y.classList.remove("d-none");
x.classList.add("d-none");
}
#myDIV1 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: blue;
margin-top: 20px;
}
#myDIV2 {
width: 100%;
padding: 50px 0;
text-align: center;
background-color: red;
margin-top: 20px;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
</head>
<body>
<button onclick="myFunction1()">Div1</button>
<button onclick="myFunction2()">Div2</button>
<div id="myDIV1">
This is First Div.
</div>
<div class="d-none" id="myDIV2">
This is Second Div.
</div>
</body>
</html>

Dividing a website into 3 sections -> 1 horizontally and 2 vertically below

i have a Sidebar on the left of the Screen. I can toggle it by pressing a button. On the right I have the content.
I want to place the button on a horizontal bar on the top. The sidebar seems to cover this bar so I can not see the button.
This is my current code:
The Html File:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>
</title>
</head>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
<script src="MainController.js"></script>
<link rel="stylesheet" type="text/css" href="MainStyle.css">
<body onload="InitDocument()">
<div id="topBar">
<button id="btnNavToggle" type="button" onclick="ToggleNavbar()">Menu</button>
</div>
<div id="container">
<div id="sideNav">
<button type="button" onclick="NewEntry()">+</button>
<p>test</p>
</div>
<div id="mainArea">
<p>Title:</p>
<input id="titleInputField" type="text">
<p>Text:</p>
<textarea id="textArea"> </textarea>
<p></p>
<button type="button" onclick="SaveEntry()">Save</button>
</div>
</div>
</body>
</html>
The Css File:
body{
background-color: #EEEEEE;
color: #000000;
}
* {
margin: 0;
padding: 0;
}
#sideNav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
overflow-x: hidden;
background-color: #333333;
color: #EEEEEE;
}
The Js File:
var navIsOpen = true;
function InitDocument(){ // Initialization
ToggleNavbar();
}
function ToggleNavbar(){ // show - hide the navbar
var sideNavWidth = "0px";
var mainAreaWidth = "0px";
if (navIsOpen)
{
sideNavWidth = "200px";
mainAreaWidth = "200px";
}
$("#sideNav").width(sideNavWidth);
$("#mainArea").css('margin-left',mainAreaWidth);
navIsOpen = !navIsOpen;
}
function SaveEntry(){ // save the entry
var txtTitle = $("#titleInputField").val();
var txtField = $("#textArea").val();
alert(txtTitle + "#" + txtField);
}
function NewEntry() { // create a new entry
alert("neuer Eintrag");
}
This is what I want to archieve
It seems I just have to fix the CSS to get it done.

I added margin-top:0; to your topBar and removed top: 0; from your sideNav.
Try this:
var navIsOpen = true;
function InitDocument(){ // Initialization
ToggleNavbar();
}
function ToggleNavbar(){ // show - hide the navbar
var sideNavWidth = "0px";
var mainAreaWidth = "0px";
if (navIsOpen)
{
sideNavWidth = "200px";
mainAreaWidth = "200px";
}
$("#sideNav").width(sideNavWidth);
$("#mainArea").css('margin-left',mainAreaWidth);
navIsOpen = !navIsOpen;
}
function SaveEntry(){ // save the entry
var txtTitle = $("#titleInputField").val();
var txtField = $("#textArea").val();
alert(txtTitle + "#" + txtField);
}
function NewEntry() { // create a new entry
alert("neuer Eintrag");
}
body{
background-color: #EEEEEE;
color: #000000;
}
*{
margin: 0;
padding: 0;
}
#topBar {
margin-top:0;
background-color: navy;
}
#sideNav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
left: 0;
overflow-x: hidden;
background-color: #333333;
color: #EEEEEE;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>
</title>
</head>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
<script src="MainController.js"></script>
<link rel="stylesheet" type="text/css" href="MainStyle.css">
<body onload="InitDocument()">
<div id="topBar">
<button id="btnNavToggle" type="button" onclick="ToggleNavbar()">Menu</button>
</div>
<div id="container">
<div id="sideNav">
<button type="button" onclick="NewEntry()">+</button>
<p>test</p>
</div>
<div id="mainArea">
<p>Title:</p>
<input id="titleInputField" type="text">
<p>Text:</p>
<textarea id="textArea"> </textarea>
<p></p>
<button type="button" onclick="SaveEntry()">Save</button>
</div>
</div>
</body>
</html>

Try this:
var navIsOpen = true;
function InitDocument(){ // Initialization
ToggleNavbar();
}
function ToggleNavbar(){ // show - hide the navbar
var sideNavWidth = "0px";
var mainAreaWidth = "0px";
if (navIsOpen)
{
sideNavWidth = "200px";
mainAreaWidth = "200px";
}
$("#sideNav").width(sideNavWidth);
$("#mainArea").css('margin-left',mainAreaWidth);
navIsOpen = !navIsOpen;
}
function SaveEntry(){ // save the entry
var txtTitle = $("#titleInputField").val();
var txtField = $("#textArea").val();
alert(txtTitle + "#" + txtField);
}
function NewEntry() { // create a new entry
alert("neuer Eintrag");
}
body{
background-color: #EEEEEE;
color: #000000;
}
* {
margin: 0;
padding: 0;
}
#main {
display: flex;
flex-direction: column;
}
#sideNav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 50px;
left: 0;
overflow-x: hidden;
background-color: #333333;
color: #EEEEEE;
}
#topBar {
position: fixed;
display: inline-block;
width: 100%;
height: 50px;
background-color: red;
}
#container {
display: flex;
padding-top: 50px;
flex: 1;
flex-direction: row;
}
<html>
<head>
<meta charset="utf-8" />
<title>
</title>
</head>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
<script src="MainController.js"></script>
<link rel="stylesheet" type="text/css" href="MainStyle.css">
<body onload="InitDocument()">
<div id="main">
<div id="topBar">
<button id="btnNavToggle" type="button" onclick="ToggleNavbar()">Menu</button>
</div>
<div id="container">
<div id="sideNav">
<button type="button" onclick="NewEntry()">+</button>
<p>test</p>
</div>
<div id="mainArea">
<p>Title:</p>
<input id="titleInputField" type="text">
<p>Text:</p>
<textarea id="textArea"> </textarea>
<p></p>
<button type="button" onclick="SaveEntry()">Save</button>
</div>
</div>
</div>
</body>
</html>
Take a look flex-box concepts

Checkout this example of using the new HTML5 semantic elements.
http://www.w3schools.com/html/html5_semantic_elements.asp
I have taken most of the example elements from the link above and created a simple HTML5 page.
You can add/remove/modify any of the section below by removing the HTML or removing/adding additional CSS properties.
var toggleButton = document.getElementById('toggle-button');
var pageWrapper = document.getElementsByClassName('wrapper')[0];
toggleButton.addEventListener('click', function() {
toggleClass(pageWrapper, 'toggle-hidden')
});
function toggleClass(el, className) {
if (el.classList) {
el.classList.toggle(className);
} else {
var classes = el.className.split(' ');
var existingIndex = classes.indexOf(className);
if (existingIndex >= 0) classes.splice(existingIndex, 1);
else classes.push(className);
el.className = classes.join(' ');
}
}
header, footer {
width: 100%;
text-align: center;
background: #DDD;
padding: 0.25em !important;
}
.title {
font-weight: bold;
font-size: 2.25em;
margin-bottom: 0.5em;
}
.subtitle {
font-size: 1.5em;
font-style: italic;
}
.wrapper {
background: #EEE;
}
nav {
text-align: center;
background: #CCC;
padding: 0.25em !important;
}
aside {
float: left;
top: 0;
width: 12em;
height: 100%;
padding: 0.25em !important;
}
aside a {
display: block;
text-decoration: none;
margin-bottom: 0.5em;
}
aside a:before {
content: '➢ ';
}
article, section {
margin-left: 12em !important;
background: #FFF;
padding: 0.25em !important;
}
/* Default HTML4 typography styles */
h1 { font-size: 2.00em !important; margin: 0.67em 0 !important; }
h2 { font-size: 1.50em !important; margin: 0.75em 0 !important; }
h3 { font-size: 1.17em !important; margin: 0.83em 0 !important; }
h5 { font-size: 0.83em !important; margin: 1.50em 0 !important; }
h6 { font-size: 0.75em !important; margin: 1.67em 0 !important; }
h1, h2, h3, h4, h5, h6 { font-weight: bolder !important; }
p { font-size: 1.00em !important; margin: 1em 0 !important; }
#toggle-button {
display: block;
position: absolute;
width: 5em;
height: 5em;
line-height: 1.5em;
text-align: center;
}
.wrapper.toggle-hidden aside {
display: none;
width: 0;
}
.wrapper.toggle-hidden article, .wrapper.toggle-hidden section {
margin-left: 0 !important;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css" rel="stylesheet"/>
<header>
<button id="toggle-button">Toggle<br />Sidebar</button>
<div class="title">What Does WWF Do?</div>
<div class="subtitle">WWF's mission:</div>
</header>
<div class="wrapper">
<nav>
HTML |
CSS |
JavaScript |
jQuery
</nav>
<aside>
<h1>Links</h1>
HTML
CSS
JavaScript
jQuery
</aside>
<section>
<h1>WWF</h1>
<p>The World Wide Fund for Nature (WWF) is....</p>
</section>
<article>
<h1>What Does WWF Do?</h1>
<p>WWF's mission is to stop the degradation of our planet's natural environment,
and build a future in which humans live in harmony with nature.</p>
</article>
</div>
<footer>
<p>Posted by: Hege Refsnes</p>
<p>Contact information: someone#example.com.</p>
</footer>

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