I have no experience with web design and I am trying desperately to create a simple web page that will contain a D3.js graph (a sweet framework to create graphs and dashboards) but I have a very big problem with positioning elements.
I am trying to have a page that I represented like this:
The graph data will be generated by a back-end process interacting with some ajax code.
I know it's simple but I have a real problem with positions, margins, padding etc.
What I tried so far is this:
<!DOCTYPE html>
</html>
<head>
<title>E-Commerce data - Interactive Map</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="{% static 'interactive_map.css' %}?v=00001">
</head>
<body bgcolor="#170061">
<div id="graph_div">
// The graph will be here
</div>
<div id="pannel_div">
// The buttons to controle the graph will be here
</div>
</body>
</html>
And a css file that look like this:
div#graph_div
{
border-radius: 2px;
vertical-align: middle;
position: relative;
width: 40%;
height: 80%;
top: 20px;
bottom: 20px;
right: 180px;
left: 20px;
background-color: #ffffff;
}
div#panel_div
{
border-radius: 2px;
vertical-align: middle;
position: relative;
width: 40%;
height: 80%;
top: 20px;
bottom: 180px;
right: 20px;
left: 20px;
background-color: #ffffff;
}
Clearly this won't work ( I know ). Can anybody help me with this?
Thank you in advance
Here's an example of what you could start doing: https://jsfiddle.net/Le232kar/
CSS looks like this:
body, html {
margin:0;
padding:0;
height:100%;
}
#topbar {
width:100%;
height:100px;
background:grey;
margin:0;
}
#graph_div {
width:60%;
height:100%;
float:left;
background:blue;
}
#panel_div {
width:40%;
float:right;
background:darkgrey;
height:100%;
}
Good luck.
Related
I'm trying to put together a site that has a welcome-type screen followed by a header/navigation that scrolls to the top of the page and is then fixed, remaining at the top of the page as the user scrolls on. The solution I have works in most browsers, except in the desktop touch version of Chrome I can't stop the header/nav from bouncing around once it reaches the top. I've looked at at least 10 Stack Overflow questions that address this problem, and I've tried a lot of different tutorials and plugins but none of them seem to work for me. I know it's possible because the technique appears on http://laravel.com, and the header/nav is ROCK-SOLID when it reaches the top and becomes fixed. This is what I have now:
html {
height: 100%; }
body {
height: 100%; }
#welcome {
background-color: grey;
height: 100%; }
#header {
background-color: white;
box-shadow: 4px 4px 4px #888888;
height: 90px;
opacity: .93;
position: absolute;
width: 100%; }
#header.fixed {
position: fixed;
top: 0;
width: 100%; }
#nav {
position: absolute;
bottom: 30px;
right: 2%; }
#nav a {
color: black;
letter-spacing: 1px;
line-height: 1.25em;
padding-left: 17px;
text-decoration: none;
text-rendering: optimizelegibility;
text-transform: uppercase; }
#about {
height: 2000px; }
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<section id="welcome"></section>
<header id="header" class="container">
<nav id="nav">
One
Two
Three
Four
</nav>
</header>
<main>
<section id="about" class="container">
</section>
</main>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$(document).scroll(function() {
var top = $(document).scrollTop();
var viewport = $("#welcome").height();
$('#header').toggleClass("fixed", top >= viewport);
});
});
</script>
</body>
May be jquery toggle make it.
$(document).ready(function() {
$(document).scroll(function() {
var top = $(document).scrollTop();
var viewport = $("#welcome").height();
if (top >= viewport ) {
$('#header').addClass("fixed");
} else if ($('#header').hasClass('fixed')) {
$('#header').removeClass('fixed')}
});
});
http://jsfiddle.net/molo4nik11/zvom6o5w/
I think this is working solution.
http://jsfiddle.net/molo4nik11/zvom6o5w/3/
#header {
background-color: white;
box-shadow: 4px 4px 4px #888888;
height: 90px;
opacity: .93;
position: relative;
width: 100%;
}
#header.fixed {
position: fixed;
top: 0;
width: 100%;
}
It has been a long time, and this is no longer an issue, but at the time chrome was not able to keep this header in place without it appearing "jumpy". I was able to fix it by adding
-webkit-transform: translateZ(0);
to the .fixed class. Although this didn't have any bearing on the visual styles that were applied, using the transform property would cause chrome to treat it as a 3d element and devote more resources to it.
As I mentioned before, this doesn't seem to be an issue anymore, and I have since been able to remove this hack without the old problem recurring.
Okay, so I recently learned that the ViewRight web player from Verimatrix is a so called NPAPI plugin which can be overlayed with HTML elements using a technique involving a "dummy iframe".
Div on top of ViewRight-player
HTML on top of NPAPI plugin
Now, as far as I've been able to gather, Silverlight appears to be a NPAPI plugin as well (I may be mistaking). So I tried the same approach to display a DIV on top of a Silverlight web player from another website loaded inside an iframe.
Unfortunately it doesn't work... As soon as the Silverlight player loads it sits on top of everything else.
I know that setting the windowless param to true in the player would fix it. But since the player isn't hosted by me I can't edit any of the object parameters.
Here's a test scenario based on the "dummy iframe" method: http://jsfiddle.net/c7Hsp/
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style type="text/css">
body {
background: black;
cursor: auto;
-webkit-user-select: none;
user-select: none;
overflow: hidden;
}
:::-webkit-scrollbar {
display: none;
}
.wrapperDiv {
position: absolute;
bottom: 200px;
left: 200px;
width: 200px;
height: 200px;
margin: 0 auto;
}
.dummyFrame {
position: absolute;
top: 200px;
left: 200px;
width: 200px;
height: 200px;
background-color: red;
}
.contentDiv {
position: absolute;
top: 25px;
left: 25px;
width: 300px;
color: white;
font-family: Arial;
font-size: 18pt;
text-align: center;
background-color: green;
}
#silverFrame {
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
border: 0px;
background: transparent;
}
</style>
</head>
<body>
<iframe id="silverFrame" src="http://clubace.dk/silverlight.htm"></iframe>
<div class="wrapperDiv">
<iframe class="dummyFrame" frameborder="0"></iframe>
<div class="contentDiv">Weee!<br>I'm overlaying this<br>NPAPI plugin :D</div>
</div>
</body>
</html>
I hope somebody can help me make this work :-)
Thx
for your deleted question PHP: Get attribute value of a specific tag from HTML [duplicate]
you miss an S in the
document.getElementsByClassName('classname')
and you can then
.
.
$attr = $tag->item(15);
$percent = $tag.style.heigth
http://www.w3schools.com/jsref/prop_style_height.asp
This is my first question here and I've tried to search for quite some time now and I haven't found any question that is the same as mine or touches the same problem.
I want to do a CSS popup that has a background-div covering the whole website and a centered div showing actual content.
My problem is that only the centered div is showing up when I'm clicking the button that is supposed to show them both. Even when I comment out the display:none - attribute in my css-file, the background div simply doesn't have any color or style attached to it. If I fill it with text, the text shows up on the website where the div is "supposed" to be if there weren't any style sheet attached to it.
I've gotten the code from coders answer in this question.
Here it is:
Script:
$("#btn-update").click(function() {
document.getElementById("light").style.display="block";
document.getElementById("blackground").style.display="block";
});
html:
<button type="button" id="btn-update">Button!</button>
<div id="light" class="white_content">This is the lightbox content. Close</div>
<div id="blackground" class="black_overlay"></div>
CSS:
.black_overlay{
/*display: none;*/
position: absolute;
top: 10%;
left: 10%;
width: 100%;
height: 100%;
background-color: #000000;
z-index:1001;
/*-moz-opacity: 0.8;*/
/*opacity:.80;*/
/*filter: alpha(opacity=80);*/
}
.white_content {
display: none;
position: absolute;
top: 25%;
left: 25%;
width: 15%;
height: 15%;
padding: 16px;
border: 16px solid orange;
background-color: white;
z-index:1002;
overflow: auto;
}
Here's the fiddle-demo so you can play around as well
I've tried changing the attributes, commenting them out, making the div visible from the get go but it always seems to not show properly (while the white_content always do).
Also: the JS-fiddle is having problems showing the white content, but the black overlay is showing just fine when you remove the display:none attribute.
Thank you so much in advance for any help. Been stuck for a while now
You need to attach the jquery plugin in jsfiddle http://jsfiddle.net/dhana36/K57DH/12/
After update http://jsfiddle.net/dhana36/K57DH/20/
UPDATE:
HTML CODE:
<!DOCTYPE html>
<html>
<head>
<style>
.black_overlay{
/* display: none;*/
position: absolute;
top: 10%;
left: 10%;
width: 50%;
height: 50%;
background-color: #000000;
z-index:1001;
/* -moz-opacity: 0.8;*/
/* opacity:.80;*/
/* filter: alpha(opacity=80);*/
}
.white_content {
display: none;
position: absolute;
top: 25%;
left: 25%;
width: 15%;
height: 15%;
padding: 16px;
border: 16px solid orange;
background-color: white;
z-index:1002;
overflow: auto;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("#btn-update").click(function() {
document.getElementById("light").style.display="block";
document.getElementById("blackground").style.display="none";
//document.getElementById("blackground").style.background-color="#555555";
});
});
</script>
</head>
<body>
<div id="light" class="white_content">
This is the lightbox content.
<a href="javascript:void(0)" onclick="document.getElementById('light').style.display='none';document.getElementById('blackground').style.display='block'">
Close
</a>
</div>
<div id="blackground" class="black_overlay"></div>
<button type="button" id="btn-update">Button!</button>
</body>
</html>
Add the script before closing </body> not inside </head> Same code doesn't work when wrapped inside head
http://jsfiddle.net/K57DH/18/ edit in left panel
I am very new to Javascript. I have been looking into using Javascript to edit css style properties. I have searched the web and looked at a lot of different problems. Even with all of that, it is probably my inexperience as to why I can't figure out what is wrong with my code. What adds to the problem is that there are so many ways to do this. Anyway here are the specifics.
What I want it to do:
When someone clicks on the link in the code, I want the hidden DIV (which will just be near the top of my waiting to be called on) to have its visibility switched to visible so as to create a new layer on the page.
My code:
<html>
<head>
<script language="javascript">
function newwindow() {
var showme = document.getelementbyid("testing");
showme.style.visibility = "visible";
}
</script>
</head>
<body>
Show me my hidden layer
<div id="testing" style="position: absolute; visibility: hidden; left: 50%; top: 50%;
border: 1px solid darkblue; width: 400px; height: 300px; line-height: 300px;
text-align: center; vertical-align: middle;
margin-top: -150px; margin-left: -200px; background: lightgray">HELLO!!!</div>
</body>
</html>
Now, I know there are a lot of ways to do this. But can someone show me what to tweak in the code I gave to make the way I am writing this work? Thanks so much for your time.
It is document.getElementById not document.getelementbyid
Working Demo
use this code
<html>
<head>
<script language="javascript">
function newwindow() {
var showme = document.getElementById("testing");
showme.style.visibility = "visible";
}
</script>
</head>
<body>
Show me my hidden layer
<div id="testing" style="position: absolute; visibility: hidden; left: 50%; top: 50%;
border: 1px solid darkblue; width: 400px; height: 300px; line-height: 300px;
text-align: center; vertical-align: middle;
margin-top: -150px; margin-left: -200px; background: lightgray">HELLO!!!</div>
</body>
</html>
I like how Facebook keeps that toolbar on the bottom of the page.
Does that require cross-browser ninja skills?
Their JavaScript/CSS files are huge so I am having a hard time narrowing down the implementation (for learning purposes).
You can achieve the effect with CSS.
Here's a basic example. No, it doesn't require cross-browser ninja skillz. =)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Facebook Bar</title>
<style type="text/css">
body {
margin: 0px;
padding: 0px;
overflow: hidden;
}
#page {
margin: 10px;
overflow: auto;
height: 93%;
}
#bottom {
width: 100%;
background: #18f8f8;
text-align: center;
}
</style>
</head>
<body>
<div id="page">
Other stuff on page
</div>
<div id="bottom">Bottom stuff goes here</div>
</body>
</html>
The best is to install Firebug and see how they did it. When I see interesting things on the web, Firebug is the best way to analyze it's HTML structure, attached CSS and you can even directly modify the CSS/HTML structure to see how it changes. Everything you see on a website can be simply read. Remember, the source (HTML, CSS, JavaScript) gets delivered with it :)
That solution doesn't work well for pages that have content extending beyond the bottom of the browser window.
Try something like this instead:
<div style="display: block;
position: fixed;
text-align: center;
z-index:1000;
bottom: 0;
left: 0;
width: 100%;
color: #999999;
clear: both;
height: 15px;
border-top-style: solid;
border-top-width: 1px;
border-top-color: #b5b6b5;
background-repeat: repeat-x;
border-right-style: solid;
border-left-style: solid;
border-right-width: 1px;
border-left-width: 1px;
border-right-color: #b5b6b5;
border-left-color: #b5b6b5;
background-color: #e7e7e7;"></div>