I have created a hover effect like whenever you hover on the box you will see a circle (actually it is a div with position: absolute whose clip-path position is controlled by Javascript offset) and when this circle reaches the second paragraph element it jumps to the top.
So I wanna know why it's happening and how to make the circle move consistently throughout the box without giving a jerk or moving to the top.
Here is my code
let container = document.querySelector(".container")
let secondDiv = document.querySelector(".test")
secondDiv.addEventListener("mousemove",function(e){
secondDiv.style.setProperty("--x",e.offsetX + "px")
secondDiv.style.setProperty("--y",e.offsetY + "px")
//console.log(e.offsetX)
})
*{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: sans-serif;
}
.container{
width:70%;
margin: 0 auto;
border:2px solid red;
height:150px;
position:relative;
background: #9F86C0;
color:white;
margin-top: 10%;
}
.container p{
font-size:2.3em;
}
.container .content{
position: absolute;
top:0;
left:0;
width: 100%;
height:150px;
padding:1em;
}
.container .content:nth-child(2){
background: #E0B1CB;
color:white;
clip-path:circle(50px at var(--x) var(--y))
}
<!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>
</head>
<body>
<div class="container">
<div class="content check">
<p>Hello People hover me</p>
<p>What's going on?</p>
</div>
<div class="content test">
<p>Hello People hover me</p>
<p>What's going on?</p>
</div>
</div>
</body>
</html>
Since there are two paragraphs in place, the mouse movement triggers to choose the paragraph over the parent. You can choose to turn off the trigger using pointer-events: none on the paragraph elements.
let container = document.querySelector(".container")
let secondDiv = document.querySelector(".test")
container.addEventListener("mousemove", function(e) {
secondDiv.style.setProperty("--x", e.offsetX + "px")
secondDiv.style.setProperty("--y", e.offsetY + "px")
//console.log(e.offsetX)
})
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: sans-serif;
}
.container {
width: 70%;
margin: 0 auto;
border: 2px solid red;
height: 150px;
position: relative;
background: #9F86C0;
color: white;
margin-top: 10%;
}
.container p {
font-size: 2.3em;
pointer-events: none; /* Added */
}
.container .content {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 150px;
padding: 1em;
}
.container .content:nth-child(2) {
background: #E0B1CB;
color: white;
clip-path: circle(50px at var(--x) var(--y))
}
<!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>
</head>
<body>
<div class="container">
<div class="content check">
<p>Hello People hover me</p>
<p>What's going on?</p>
</div>
<div class="content test">
<p>Hello People hover me</p>
<p>What's going on?</p>
</div>
</div>
</body>
</html>
Related
I have a basic html document with a sticky header and footer. I also have a div below the header that sticks to the header because it will eventually contain some tabs above a form. I have tried to align the form below this vertically but they don't line up. The problem is the tab div does not have a scrollbar but the form does. This means the width of the form is different to the width of the tabs. I tried to set them to 70% of the width and center but, because of the scrollbar they don't line up. I've tried some javascript to get the width of the scrollbar and then add this to the current right margin but it doesn't work. You will see the form is not as wide as the tabs div. I have spent hours on this.
Also, I tried adding a margin-bottom to the form but no margin appears below the border.
$(document).ready(function () {
setFormsWidth();
});
function setFormsWidth() {
let scrollbox = document.createElement('div');
// Make box scrollable
scrollbox.style.overflow = 'scroll';
// Append box to document
document.body.appendChild(scrollbox);
// Measure inner width of box
scrollBarWidth = scrollbox.offsetWidth - scrollbox.clientWidth;
// Remove box
document.body.removeChild(scrollbox);
// Get current width of right margin, which should be 30% of the
// width of the form-panel parent (the content class).
var formPanel = document.getElementById("main-form");
// Get the current right margin and remove the px at end of number
var style = window.getComputedStyle(formPanel);
var marginRightString = style.getPropertyValue('margin-right');
var marginRight = marginRightString.slice(0,-2);
// now addthe scrollBarWidth to the right margin
var newMargin = marginRight + scrollBarWidth;
formPanel.style.marginRight = newMargin + "px";
}
html, body {
height: 100%;
margin: 0;
overflow:hidden;
}
.wrapper {
height: 100%;
display: flex;
flex-direction: column;
}
.header, .footer {
background: silver;
}
.page {
flex: 1;
overflow: auto;
background: pink;
}
.content {
background-color: green;;
}
.tabs {
width: 70%;
height: 50px;
background-color: aqua;
margin: 0 auto;
border-bottom: solid #FE6D73 7px;
}
.form-panel {
width: 70%;
height: 1000px;
background-color: #FFF;
margin: 0 auto;
overflow-y: auto;
border-bottom: solid #FE6D73 7px;
}
<!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="style.css"/>
</head>
<body>
<div class="wrapper">
<div class="header">Header</div>
<div class="tabs">
THIS IS TAB
</div>
<div class="page" id="calculator">
<div style="height:1000px;">
<div class="content">
<form class="form-panel" id="main-form">THIS IS FORM</form>
</div>
</div>
</div>
<div class="footer">Footer</div>
</div>
<script type="text/javascript" src="script.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
</body>
</html>
I suggest to show the scrollbar besides .form-panel element but not .page div, so it will not affect centering .form-panel element.
Here is how to change the css.
Set height to 100% for all elements between .page and .form-panel elements, including .form-panel itself, so that scrollbar for .page will not be shown
Set box-sizing: border-box; for .form-panel, so that the border is drawn inside .form-panel
move .footer outside .page element
If you would like to set a specific height for .form-panel, you can create a div inside it and set its height like below:
html, body {
height: 100%;
margin: 0;
overflow:hidden;
}
.wrapper {
height: 100%;
display: flex;
flex-direction: column;
}
.header, .footer {
background: silver;
}
.page {
flex: 1;
overflow: auto;
background: pink;
}
.content {
background-color: green;
height: 100%;
}
.tabs {
width: 70%;
height: 50px;
background-color: aqua;
margin: 0 auto;
border-bottom: solid #FE6D73 7px;
}
.form-panel {
width: 70%;
height: 100%;
background-color: #FFF;
margin: 0 auto;
overflow-y: auto;
border-bottom: solid #FE6D73 7px;
padding-bottom: 7px;
box-sizing: border-box;
}
<!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="style.css"/>
</head>
<body>
<div class="wrapper">
<div class="header">Header</div>
<div class="tabs">
THIS IS TAB
</div>
<div class="page" id="calculator">
<div style="height:100%;">
<div class="content">
<form class="form-panel" id="main-form">
<div style="height:1000px">
THIS IS FORM
</div>
</form>
</div>
</div>
</div>
<div class="footer">Footer</div>
</div>
</body>
</html>
Hello I am new to HTML and CSS, and I was trying to display the contents of a div element when I hover over a li element. So basically what I am trying to do is when I hover over one li element (say: ls1), I want to display dv2. However, my code does not display the contents even when I hover over it. Please help!! Thank you.
const list_dv1 = document.querySelectorAll('.dv1 li');
function show_item() {
list_dv1.forEach((item) =>
item.classList.remove('hovered'));
this.classList.add('hovered');
}
list_dv1.forEach((item) =>
item.addEventListener('mouseover', show_item));
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.main {
position: relative;
background-color: black;
height: 100vh;
width: 100%;
}
.dv1 {
background-color: yellow;
cursor: pointer;
}
.dv1 li:hover {
transform: scale(1.2);
}
ul {
list-style-type: none;
display: flex;
}
li {
margin: 20px;
}
.dv2 {
background-color: greenyellow;
color: black;
}
.dv2 {
display: none;
}
.ls1:hover+.dv2 {
display: block;
}
.dv3 {
background-color: yellowgreen;
color: black;
}
<!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">
<link rel="stylesheet" href="styles.css">
<title>Practice Hiding Elements</title>
</head>
<body>
<div class="main">
<div class="dv1">
<ul>
<li class="ls1">Hover over me once</li>
<li class="ls2">Hover over me twice</li>
</ul>
</div>
<div class="dv2">You found me!</div>
<div class="dv3">You found me twice!</div>
</div>
</body>
</html>
I have a test HTML file in which I toggle the class 'hide' with JavaScript but the content does not hide, I can't understand why, what can be done in order to get the content to toggle between hide/show.
function init() {
let button = document.querySelector('#menubutton');
button.onclick = buttonClicked;
}
function buttonClicked(event) {
let content = document.querySelector('.content');
content.classList.toggle('hide');
}
window.addEventListener('load', init);
.hide {
display: none;
}
.menu {
position: relative;
}
.content {
display: flex;
flex-flow: column wrap;
border: 1px solid gray;
padding: 0.25rem;
position: absolute;
}
.color {
background-color: pink;
border: 1px solid gray;
width: 4rem;
height: 4rem;
}
<!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>
</head>
<body>
<div class="menu">
<div class="title">
<button id="menubutton">Toggle</button>
</div>
<div class="content">
Uno
Dos
Tres
Cuatro
Cinco
</div>
</div>
<div class="color"></div>
</body>
</html>
When you add the hide class, the element has two classes, and they both specify different display properties. The property from .content is taking precedence.
Make your selector more specific so it will take precedence, use .content.hide.
function init() {
let button = document.querySelector('#menubutton');
button.onclick = buttonClicked;
}
function buttonClicked(event) {
let content = document.querySelector('.content');
content.classList.toggle('hide');
}
window.addEventListener('load', init);
.content.hide {
display: none;
}
.menu {
position: relative;
}
.content {
display: flex;
flex-flow: column wrap;
border: 1px solid gray;
padding: 0.25rem;
position: absolute;
}
.color {
background-color: pink;
border: 1px solid gray;
width: 4rem;
height: 4rem;
}
<!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>
</head>
<body>
<div class="menu">
<div class="title">
<button id="menubutton">Toggle</button>
</div>
<div class="content">
Uno
Dos
Tres
Cuatro
Cinco
</div>
</div>
<div class="color"></div>
</body>
</html>
Another possibility is to use !important in the .hide CSS to make it override other styles.
function init() {
let button = document.querySelector('#menubutton');
button.onclick = buttonClicked;
}
function buttonClicked(event) {
let content = document.querySelector('.content');
content.classList.toggle('hide');
}
window.addEventListener('load', init);
.hide {
display: none !important;
}
.menu {
position: relative;
}
.content {
display: flex;
flex-flow: column wrap;
border: 1px solid gray;
padding: 0.25rem;
position: absolute;
}
.color {
background-color: pink;
border: 1px solid gray;
width: 4rem;
height: 4rem;
}
<!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>
</head>
<body>
<div class="menu">
<div class="title">
<button id="menubutton">Toggle</button>
</div>
<div class="content">
Uno
Dos
Tres
Cuatro
Cinco
</div>
</div>
<div class="color"></div>
</body>
</html>
When you do toggle, the classes are being toggled this way:
"content"
and
"content hide"
Now, both content and hide set display property. When there's such conflict, the rule that is defined later (either within <style> or in a further stylesheet) takes precedence.
You could see #Barmar's answer which shows !important and .content.hide to force higher precedence.
Or you could just define .hide after .content which gives it higher precedence.
function init() {
let button = document.querySelector('#menubutton');
button.onclick = buttonClicked;
}
function buttonClicked(event) {
let content = document.querySelector('.content');
content.classList.toggle('hide');
}
window.addEventListener('load', init);
.menu {
position: relative;
}
.content {
display: flex;
flex-flow: column wrap;
border: 1px solid gray;
padding: 0.25rem;
position: absolute;
}
.hide {
display: none;
}
.color {
background-color: pink;
border: 1px solid gray;
width: 4rem;
height: 4rem;
}
<!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>
</head>
<body>
<div class="menu">
<div class="title">
<button id="menubutton">Toggle</button>
</div>
<div class="content">
Uno
Dos
Tres
Cuatro
Cinco
</div>
</div>
<div class="color"></div>
</body>
</html>
This question already has answers here:
What is a clearfix?
(10 answers)
What methods of ‘clearfix’ can I use?
(29 answers)
Closed 1 year ago.
I have this CSS project I am working on and now I am in the phase where I will start to embelish it with some effects and nice colors. However I just realized that there is a small issue with it: the beige container won't adjust its height as the blue cells move around. Could anyone help please? Here it is my code:
HTML
<!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">
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<script src="OEPanel.js"></script>
<link rel="stylesheet" href="./OEPanel.css">
<title>Document</title>
</head>
<body>
<div id="oepanelcontainer" class="OEContainer">
<div id="oepanel" class="OEItems">
<div id="oecell1" class="OECell"></div>
<div id="oecell2" class="OECell"></div>
<div id="oecell3" class="OECell"></div>
<div id="oecell4" class="OECell"></div>
</div>
</body>
</html>
CSS
.OEContainer {
background-color: beige;
min-height: 10em;
vertical-align: middle;
padding: 10px;
max-width:1130px;
margin:auto;
text-align:center;
justify-content:space-between;
}
.OEItems {
min-height: 10em;
vertical-align: middle;
padding: 0px;
max-width:1130px;
margin:auto;
text-align:center;
justify-content:space-between;
}
.OECell {
background-color: lightblue;
min-height: 10em;
vertical-align: middle;
padding: 0px;
width:250px;
text-align:center;
float: left;
margin: 5px;
}
#media (max-width: 500px) {
.OEContainer {
flex-direction: column;
align-items: center;
}
}
JS
// config
var __OECELLS = 4; // the total of oecells in HTML (oecell1, oecell2...)
var __CELLWIDTH = 250; // the width of cells in pixels
var __MAXSCREENWIDTH = 1130; // the maximum width of screen in pixels
var __MAXCELLS = parseInt(__MAXSCREENWIDTH/__CELLWIDTH);
var __ADJUSTMENT = (__CELLWIDTH-30)/2;
var __CELLSPERROW;
$(function() {
RedefinePanel();
});
$(window).resize(function() {
RedefinePanel();
});
function RedefinePanel() {
var viewportWidth = $(window).width();
let __CELLSPERROW = parseInt((viewportWidth-__ADJUSTMENT)/__CELLWIDTH);
document.getElementById("oepanel").style.width = ((__CELLSPERROW)*__CELLWIDTH+(__CELLSPERROW*17)) + "px";
Thanks!
You need a clearfix for the container of your floated items.
.OEContainer {
background-color: beige;
min-height: 10em;
vertical-align: middle;
padding: 10px;
max-width:1130px;
margin:auto;
text-align:center;
justify-content:space-between;
}
.OEItems {
min-height: 10em;
vertical-align: middle;
padding: 0px;
max-width:1130px;
margin:auto;
text-align:center;
justify-content:space-between;
}
.clearfix::after { /* clearfix class to expand the element back to its normal height */
content: '';
display: block;
clear: both;
}
.OECell {
background-color: lightblue;
min-height: 10em;
vertical-align: middle;
padding: 0px;
width:250px;
text-align:center;
float: left;
margin: 5px;
}
#media (max-width: 500px) {
.OEContainer {
flex-direction: column;
align-items: center;
}
}
<!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">
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<script src="OEPanel.js"></script>
<link rel="stylesheet" href="./OEPanel.css">
<title>Document</title>
</head>
<body>
<div id="oepanelcontainer" class="OEContainer">
<div id="oepanel" class="OEItems clearfix"> <!-- clearfix class added here -->
<div id="oecell1" class="OECell"></div>
<div id="oecell2" class="OECell"></div>
<div id="oecell3" class="OECell"></div>
<div id="oecell4" class="OECell"></div>
</div>
</body>
</html>
When you use floats for all of the children of an element - it will collapse 0 height ( minus padding and margins etc ) unless you force it to expand to the size of it's children with a clearfix. Essentially it's a bug/quirk in browsers that's been persistent for a while.
Although this answers your questions I would advise against using floats wherever possible and use flexbox instead. Overall a lot less messy than floats in my opinion.
this is my code,for some reason , i can't use any javascript lib ,like ;jquery:
<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" style="height: 100%;">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width,minimum-scale=0.3,maximum-scale=5.0,user-scalable=yes">
<meta name="apple-mobile-web-app-capable" content="yes" />
</head>
<body style="height: 100%;margin:0;">
<style type="text/css">
#draggable { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0;
border:1px solid #DDDDDD;
color:#333333;
background:#F2F2F2;
cursor:move;
}
#droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px;
border:1px solid #E78F08;
color:#FFFFFF;
font-weight:bold;
background:#F6A828;
overflow:hidden;
}
#droppable.highlight{
}
#draggable.end{
left:0px !important;
top:0px !important;
}
</style>
<div class="demo" style="margin:0 auto;height: 100%;">
<div id="A" style="float:left;height:50%;margin:0 100px 0 0;width:100%;background:#333;">
<div id="draggable">
<p>Drag me to my target</p>
</div>
</div>
<div id="droppable" >
<p>Drop here</p>
</div>
</div><!-- End demo -->
<script type="text/javascript">
var $=function(id) {
return document.getElementById(id);
}
$('draggable').ontouchstart = function(evt){
console.log(evt.pageX + "/" + evt.pageY);
}
$('draggable').ontouchmove = function(e){
if(e.touches.length == 1){ // Only deal with one finger
var touch = e.touches[0]; // Get the information for finger #1
var node = touch.target; // Find the node the drag started from
node.style.position = "absolute";
node.style.left = touch.pageX -node.offsetWidth /2+ "px";
node.style.top = touch.pageX -node.offsetHeight/2+ "px";
}
}
</script>
</body>
</html>
my code Can not generate the right track，
so what can i do .
thanks
I found this one. I have tested it on my computer AND on an IPAD2, and it works perfect on both devices... Maybe it could fit your needs:
http://furf.com/exp/touch-punch/index.html