This one should make many scratch their head...
Could someone let me know why my <div> element (id 'container') is shifting down when the overflow-y is set to "scroll" in Microsoft Edge? Seems to work just fine in Firefox.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Test</title>
<meta charset="UTF-8" />
<style>
body {
border: 3px dotted red;
position: fixed;
width: 100%;
height: 100%;
display: grid;
justify-items: center;
align-items: center;
overflow: hidden;
box-sizing: border-box;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div style="height: 95%; border: 2px dotted orange; background-color: blue; overflow: hidden;">
<div id="container" style="overflow-y: scroll; width: 60vmin; height: 95%; background-color: silver;"></div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script>
for (var i = 0; i < 500; i++) {
$('#container').append('<div style="border: 1px solid silver;">Hello World!</div>');
}
</script>
</body>
</html>
Here are the screenshots for both Firefox and Microsoft Edge:
Firefox:
Edge:
Try to modify your code as below(demo):
<style type="text/css">
body {
border: 3px dotted red;
position: fixed;
width: 100%;
height: 100%;
justify-items: center;
align-items: center;
overflow: hidden;
box-sizing: border-box;
margin: 0;
padding: 0;
}
</style>
<div style="height: 95%; width: 60vmin; border: 2px dotted orange; background-color: blue; overflow: hidden; margin-right:20px ; margin-top:20px; float:right">
<div id="container" style="overflow-y: scroll; width: 60vmin; height: 100%; background-color: silver;"></div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script>
$(function () {
for (var i = 0; i < 500; i++) {
$('#container').append('<div style="border: 1px solid silver;">Hello World!</div>');
}
});
</script>
The result in Microsoft Edge browser as below:
Related
I have an issue with Dompdf not positioning images correct.
The output in browser is ok, but the images are to close to the title in the PDF.
They should also render over the blue bar. I thought this should be possible with either a negative margin-top or a position absolute. But from what I read is that position:absolute inside a position:relative container is (still) not working.
HTML and expected output:
<html>
<head>
<link href="https://fonts.googleapis.com/css?family=Lato:100,100i,300,300i,400,400i,700,700i,900,900i" rel="stylesheet">
<style>
#page { margin: 0px; }
body
{
font-family: 'Lato';
font-size: 13px;
margin: 0px;
padding: 0px;
}
.container
{
padding: 0px 30px;
}
.top_container
{
position: relative;
}
.subgroep
{
color: #2e4660;
font-weight: 700;
padding-top: 30px;
}
.top_container .balk_blauw
{
/*position: absolute;*/
/*bottom: 0px;*/
/*left: 0px;*/
height: 60px;
width: 100%;
background: #2e4660;
margin-top: -60px;
}
.top_container .images
{
position: relative;
z-index: 99;
}
.top_container .images img
{
width: 230px;
margin-top:20px;
}
</style>
</head>
<body>
<div class="top_container">
<div class="container">
<div class="subgroep">Wijnklimaatkast</div>
<div class="images">
<img src="https://www.lhis.nl/producten/WTes1672-21_dicht_gevuld.png" class="image1">
<img src="https://www.lhis.nl/producten/WTes1672-21_open_leeg.png" class="image2">
</div>
</div>
<div class="balk_blauw"></div>
</div>
</body></html>
PDF renders as follows:
Screenshot
PHP Code:
$dompdf_options = new \Dompdf\Options();
$dompdf_options->set('isRemoteEnabled', true);
$dompdf_options->set('chroot', $dirname);
$dompdf = new \Dompdf\Dompdf($dompdf_options);
$dompdf->loadHtml($html);
$dompdf->setPaper('A4', 'portrait');
$dompdf->render();
$dompdf->stream();
This is an issue with how Dompdf aligns element within a line box. There is an ongoing effort to address the issue (WIP).
With the current release you can work around the issue by moving your image block down using relative positioning. You'll also want to set z-indexing a bit differently to better accommodate how Dompdf renders elements.
Try the following:
<html>
<head>
<link href="https://fonts.googleapis.com/css?family=Lato:100,100i,300,300i,400,400i,700,700i,900,900i" rel="stylesheet">
<style>
#page { margin: 0px; }
body
{
font-family: 'Lato';
font-size: 13px;
margin: 0px;
padding: 0px;
}
.container
{
padding: 0px 30px;
z-index: 99;
}
.top_container
{
position: relative;
}
.subgroep
{
color: #2e4660;
font-weight: 700;
padding-top: 30px;
}
.top_container .balk_blauw
{
/*position: absolute;*/
/*bottom: 0px;*/
/*left: 0px;*/
height: 60px;
width: 100%;
background: #2e4660;
margin-top: -60px;
}
.top_container .images
{
position: relative;
top: 40px;
z-index: 99;
}
.top_container .images img
{
width: 230px;
margin-top:20px;
}
</style>
</head>
<body>
<div class="top_container">
<div class="container">
<div class="subgroep">Wijnklimaatkast</div>
<div class="images">
<img src="https://www.lhis.nl/producten/WTes1672-21_dicht_gevuld.png" class="image1">
<img src="https://www.lhis.nl/producten/WTes1672-21_open_leeg.png" class="image2">
</div>
</div>
<div class="balk_blauw"></div>
</div>
</body></html>
Follow your issue for updates
I'm making an image slider, and everything works so far but my previous and next buttons are not centering vertically on the main image. I'm trying to make it responsive as well.
I tried everything but I don't know what I'm missing. The absolute position with top: 50% doesn't seem to do the trick. Here's the codepen.
$('#imgDetail li img').click(function(){
$('#unidoor').attr('src',$(this).attr('src'));
});
$('#next').on('click',function(){
var imgSrc = $('#unidoor').attr('src');
var nextSrc = $('ul img[src="'+imgSrc+'"]').closest('li').next().find('img').attr('src');
console.log(nextSrc);
nextSrc ==undefined?$('#unidoor').attr('src',$('ul img:first').attr('src')): $('#unidoor').attr('src',nextSrc);
});
$('#prev').on('click',function(){
var imgSrc = $('#unidoor').attr('src');
var nextSrc = $('ul img[src="'+imgSrc+'"]').closest('li').prev().find('img').attr('src');
console.log(nextSrc);
nextSrc ==undefined?$('#unidoor').attr('src',$('ul img:last').attr('src')): $('#unidoor').attr('src',nextSrc);
});
* {
margin: 0;
padding: 0;
}
body{
margin: 0;
padding:0;
font-size: 100%;
/* line-height: 1.6; */
/* font-family: Arial, Helvetica, sans-serif; */
}
.header{
margin: 0 auto;
width: 100%;
background-color: #333;
padding: 30px 0 0 0;
}
.header h1{
margin: 0;
text-align: center;
color: white;
font-family: Arial, Helvetica, sans-serif;
}
.header ul {
list-style-type: none;
margin: 0;
/* padding: 0; */
overflow: hidden;
padding: 20px 0px 30px 0;
text-align: center;
}
.header li {
display: block;
display: inline-block;
/* border-right: 1px solid #bbb; */
border-right: 1px solid #bbb;
height: 25px;
}
.header li:last-child{
border-right: none;
}
.header li a {
display: block;
color: white;
text-align: center;
text-decoration: none;
padding: 0px 40px;
font-size: 1em;
}
.header li a:hover{
color: #7bbe9a;
/* color: #80b198; */
}
#green-room {
background: #333 !important;
}
#unidoor {
position: relative;
width: 90%;
margin: 0 auto;
display: block;
}
#prev {
position: absolute;
top: 50%;
left: 10%;
transform: translate(-10%, -50%);
}
#next {
position: absolute;
top: 50%;
right: 10%;
transform: translate(-10%, -50%);
}
/* .previous {left: 10%;}
.next {right: 10%;} */
/* .prev-next-button a {
position: absolute;
left: 20%;
top: 20%;
} */
#imgDetail ul {
margin: 0 auto;
display: block;
width: 50%;
}
.thumb {
width: 25%;
height: auto;
margin: 15px 5px 0 5px;
}
#imgDetail li {
display: inline; margin-right: 10px;
}
#imgDetail a {
text-decoration: none;
display: inline-block;
padding: 8px 16px;
}
#imgDetail a:hover {
background-color: #7bbe9a;
color: white;
opacity: 1;
}
.previous {
background-color: #fff;
opacity: 0.5;
color: black;
}
.next {
background-color: #fff;
opacity: 0.5;
color: black;
}
/* .round {
border-radius: 50%;
} */
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Daniel Pollack</title>
<link rel="stylesheet" type="text/css" href="css/styles.css"/>
</head>
<body id="green-room">
<div class="header">
<div id="title"><h1>Lorem Ipsum 3D Online Portfolio</h1></div>
<nav id="menu">
<ul>
<li>Home</li>
<li>Portfolio</li>
<li>About</li>
<li>Contact</li>
</ul>
</nav>
</div>
<div id="imgDetail">
<br>
<img src="http://www.davidwightman.net/_images_landscape/Behemot/Behemot_detail_1.jpg" alt="" id="unidoor" />
‹
›
<ul>
<li><img src="http://www.davidwightman.net/_images_landscape/Behemot/Behemot_detail_1.jpg" class="thumb" /></li>
<li><img src="http://www.davidwightman.net/_images_landscape/Behemot/Behemot_detail_2.jpg" class="thumb" /></li>
<li><img src="http://www.davidwightman.net/_images_landscape/Behemot/Behemot_detail_3.jpg" class="thumb" /></li>
</ul>
</div>
<script src="https://unpkg.com/scrollreveal/dist/scrollreveal.min.js"></script>
<script>
window.sr = ScrollReveal({reset: true});
sr.reveal('#unidoor');
</script>
</body>
</html>
Hello there you can wrap the <div id="imgDetail"> in an outer div class for instance <div class="slideshow-container"> and then add your CSS which would look like this:
.slideshow-container {
max-width: 1000px;
position: relative;
margin: auto;
}
You can get the changes on codepen. Happy coding :)
Would appreciate any help with adding a second layer to my torque map in cartodb using createlayer. Sorry I'm obviously just learning and know just enough to be dangerous the following is a bootstrap page I'm messing with. Zombie Outbreak ;) Thanks in advance....
<!DOCTYPE html>
<html>
<head>
<title>OUTBREAK</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<link rel="shortcut icon" href="img/tecKEY.ico">
<link href='http://fonts.googleapis.com/css?family=Share+Tech+Mono' rel='stylesheet' type='text/css'>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" type="text/css" href="style.css">
<!-- Map takes up full browser window -->
<link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/3.14/themes/css/cartodb.css" />
<style type="cartocss/text" id="cartocss">
/** torque visualization */
Map {
-torque-frame-count:303;
-torque-animation-duration:30;
-torque-time-attribute:"permit_dat";
-torque-aggregation-function:"count(tot_assess)";
-torque-resolution:3;
-torque-data-aggregation:cumulative;
}
#sfr_master2{
comp-op: lighter;
marker-fill-opacity: 0.9;
marker-line-color: #FFF;
marker-line-width: 0;
marker-line-opacity: 1;
marker-type: ellipse;
marker-width: 6;
marker-fill: #ff5c00;
[value < 12] { /* if 6 <= value < 12, color the marker red */
marker-fill: #FF5C00;
}
[value < 6 ] { /* if 3 <= value < 6, color the marker purple */
marker-fill: #FF5C00;
}
[value < 3 ] { /* if value < 3, color the marker blue */
marker-fill: #FF5C00;
}
}
#sfr_master2[frame-offset=1] {
marker-width:8;
marker-fill-opacity:0.45;
}
#sfr_master2[frame-offset=2] {
marker-width:10;
marker-fill-opacity:0.225;
}
</style>
<link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/3.14/themes/css/cartodb.css" />
</head>
<body>
<!-- Navigation -->
<header>
<nav class="navbar navbar-inverse navbar-fixed-top topnav" role="navigation">
<div class="container topnav">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<img style="max-width:100px; padding-right: 10px; margin-top: -7px;" src="img/teckey_logosmall.png">
<a class="navbar-brand topnav" href="#">Map of Infection</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li>
About
</li>
<li>
Services
</li>
<li>
Contact
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container -->
</nav>
</header>
<div id="map"></div>
<script src="http://libs.cartocdn.com/cartodb.js/v3/3.14/cartodb.js"></script>
<!-- place your code below -->
<script>
function main() {
// Instantiate new map object, place it in 'map' element
var map = new L.Map('map', {
center: [37.976029, -87.587514], // Western Egypt
zoom: 13,
scrollWheelZoom: true
});
// setup layer
var layerSource = {
type: 'torque',
options: {
user_name: 'rkey', // replace with your user name
table_name: 'sfr_master2',
cartocss: $("#cartocss").html()
}
}
var layer = L.tileLayer('http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png', {
attribution: '© OpenStreetMap contributors, © CartoDB'
});
map.addLayer(layer);
// put torque layer on top of basemap
cartodb.createLayer(map, layerSource)
.addTo(map)
.done(function(layer) {
// do stuff
})
.error(function(err) {
console.log("Error: " + err);
});
}
window.onload = main;
</script>
<div class="container-fluid">
<div id="dumbo" class="jumbotron">
<h1>Zombie Outbreak 2015</h1>
<h2>Confirmed Infection Locations</h2>
<p>Use scroll wheele or the + - buttons top left to zoom in or out, click on a location point to view info window</p>
<p><a class="btn btn-danger btn-lg" href="#" role="button">Learn more</a></p>
</div>
</div>
</body>
</html>
CSS
html, body {
font-family: 'Share Tech Mono', ;
height: 100%;
padding: 70;
margin: 0;
overflow:hidden;
background-color: black
}
div.cartodb-timeslider {
position: absolute;
display: inline-block;
height: 40px;
width: auto!important;
margin-bottom: 30px;
padding: 0;
-webkit-box-shadow: rgba(0,0,0,.2) 0 0 4px 2px;
-moz-box-shadow: rgba(0,0,0,.2) 0 0 4px 2px;
box-shadow: rgba(0,0,0,.2) 0 0 4px 2px;
background: rgba(153, 153, 153, 0.19)!important;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
-ms-border-radius: 4px;
-o-border-radius: 4px;
border-radius: 4px;
border: 1px solid #9f3700!important;
text-align: left;
z-index: 105;
}
div.cartodb-timeslider .ui-slider .ui-slider-range {
position: absolute;
z-index: 100;
font-size: .7em;
display: block;
border: 0;
background-position: 0 0;
background-color: #9f3700!important;
border-radius: 2px;
-webkit-border-radius: 2px;
-moz-border-radius: 2px;
-o-border-radius: 2px;
}
div.cartodb-timeslider .slider-wrapper {
display: inline-block;
zoom: 1;
vertical-align: top;
width: 275px!important;
height: 4px;
padding: 18px 15px;
}
div.cartodb-timeslider p {
width: 120px;
height: 40px;
margin: 0;
padding: 0 5px 0 0;
line-height: 40px;
font-size: 13px;
font-weight: 700;
font-family: Helvetica,Arial;
text-align: center;
color: rgb(159, 55, 0)!important;
}
.navbar-inverse {
border-bottom: 1px solid rgb(159, 55, 0);
font-size: 24px;
}
.navbar-inverse .navbar-nav>li>a:hover {
color: #9f3700;
background-color: transparent;
}
.navbar-inverse .navbar-brand {
color: #9d9d9d;
font-size: 24px;
}
.navbar-inverse .navbar-brand:hover {
color: rgb(159, 55, 0);
}
#map {
border: 1px solid rgb(159, 55, 0);
height: 460px;
width: 100%;
margin: 60px 0px 1px 0px;
}
#dumbo {
display: table;
width: 100%;
padding: 0 0;
text-align: center;
color: rgb(159, 55, 0);
position: relative;
background: url(img/dark%20grunge.jpg) no-repeat center scroll;
background-color: #000;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
z-index: 16;
}
#dumbo:after {
content: "";
background: url(img/Overlays/14.png) repeat;
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
opacity: 1.0;
z-index: -1;
}
.btn-danger {
color: #070707;
background-color: rgb(82, 82, 82);
border-color: black;
}
.btn-danger:hover {
color: #ffffff;
background-color: rgb(159, 55, 0);
border-color: black;
}
You are missing one important bit of specification. You always need to specify the height and width of the div that will play the role of the container for your map otherwise it will get zero height.
Since a significant part of your screen will be used by the bootstrap nav and jumbotron, you will need to specify height less than 100%.
Add the following lines to your page at the bottom of the head block.
<style>
html, body {width:100%; height:100%; padding: 0; margin: 0;}
#map { width: 100%; height:60%; background: black;}
</style>
Also consider moving the map below the jumbotron to avoid the map controls being overflown by the top navigation.
Finally there is one little problem brought to you by bootstrap CSS. Bootstrap uses a box sizing model that is different from the default (see box-sizing in CSS TR). This breaks the computation of the cartodb timeslider width. You can quickly fix this by adding an extra CSS clause:
<style>
div.cartodb-timeslider .slider-wrapper {box-sizing: content-box;}
</style>
Update: With the CSS provided by the OP that already has all the necessary clauses and tweaks the page has a street network from CartoDB standard basemap, a set of blots from the custom layer, a jumbotron and a menu from bootstrap.
I'm trying to create a chart on a webpage with each entry being coded as a div containing a <p> element, to number the entry, furthest to the left and a picture next to it. However when I try this code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD\xhtml1-strict.dtd">
<html xmlns="hhtp://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title></title>
<style>
.entry {
background-color: #99d699;
width: 600px;
height: auto;
margin-left: auto;
margin-right: auto;
padding: 1px;
border-color: #808080;
border-width: 2px;
border-bottom-style: solid;
position: relative;
overflow: hidden;
}
.entry p {
color: white;
font-weight: bold;
font-size: 30px;
margin-top: 15px;
margin-bottom: 15px;
margin-left: 10px;
}
.art {
width: 80px;
height: 80px;
margin-top: auto;
margin-bottom: auto;
margin-left: 10px;
float: left;
overflow: hidden;
}
</style>
</head>
<body style="background-color: #D6DDD6;">
<div class="entry">
<p>
1
</p>
<img class="art" src="http://wvs.topleftpixel.com/photos/2008/04/Dundas_Square_Pano_Fisheye_tunnel_crop.jpg" alt="Random pic" />
</div>
</body>
</html>
...the picture ends up underneath the paragraph. How can I cleanly position the image to the right of the paragraph?
Here is JSBin
Simply add below code in your CSS
p{
float:left;
}
I have a website I'm working on and I'm positive it is something obvious that I'm overlooking here.
My main issue and why I'm here: My page looks great in Chrome and Safari, but FF v.21 (Mac) takes the textcont and linkcont layers and puts them all the way to the right, outside of the container I have for them. I know they are floating, but I can't seem to get them to show correctly there.
*EDIT: 6-18 # 1p--*I solved the other issue, but Firefox still is putting the two inner containers OUTSIDE of the main content container.
*EDIT: 6-20 # 9:45a--*I found that if I added "Position: absolute;" to the #contentbox, everything seemed to work in Chrome, Safari, and Firefox (can't test it on IE currently), BUT my #copybox div (last layer that displays the year with copyright at the very bottom) would align overtop of the #contentbox at the top. I tried using absolute position on that div, but just made it visible, relative made it hidden--but still up top where it shouldn't be. Any ideas? If I can get the absolute positioning to work on the content, I just need a fix to keep the #copybox following the end of the #contentbox layer.
Firefox Screenshot: http://i41.tinypic.com/20t0xh0.png
Chrome/Safari (correct): http://i40.tinypic.com/a4y1ar.png
Style Code:
#charset "UTF-8";
/* CSS Document */
body {
background-color: #FAD434;
font-family: Helvetica, arial, sans-serif;
font-size: 14px;
}
#container {
width: 100%;
padding: 0px;
margin: 0 auto;
}
#headercont {
width: 900px;
margin: 0 auto;
}
#header {
width: 100%;
height: 65px;
margin: 0 auto;
background-color: #000000;
background-image:url(img/logo.png);
background-repeat: no-repeat;
background-position: left;
border-bottom: 2px solid #fad434;
}
#picheader {
height: 360px;
background-image:url(img/NHYC_BoySmile.jpg);
background-repeat: no-repeat;
background-position: top center;
}
#contentbox {
width: 100%;
background-image: url(img/content_bkgd.jpg);
background-position: bottom center;
background-repeat: repeat-x;
background-color: #ffffff;
margin-top: 0px;
padding-bottom: 50px;
}
#contentcont {
width: 900px;
margin: 0 auto;
overflow: auto;
}
#textcont {
width: 70%;
padding: 0px 0px 25px 10px;
float: left;
}
#linkcont{
width: 25%;
padding-top: 63px;
padding-right: 10px;
padding-left: 10px;
float: right;
}
#copybox {
width: 100%;
font-size: 10px;
text-align: center;
padding: 15px;
}
/* --- HEADER TEXT --- */
h1 {
font-size: 40pt;
color: #f28c3d;
border-bottom: 2px solid #FAD434;
text-transform: uppercase;
}
h2 {
font-size: 24 pt;
color: #f28c3d;
border-bottom: 2px solid #FAD434;
text-transform: uppercase;
}
h3 {
font-size: 18 pt;
color: #f28c3d;
border-bottom: 2px solid #FAD434;
text-transform: uppercase;
}
/* --- LINK LIST --- */
.links li {
list-style-type:none;
line-height: 20pt;
}
/* --- MENU --- */
#menu {
width: 100%;
margin: 0 auto;
padding-top: 325px;
}
#menu ul, #menu ul ul {
list-style-type: none;
padding: 0;
margin: 0 auto;
}
#menu ul li{
padding: 10px 25px;
position: relative;
float: left;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
text-transform: uppercase;
}
#menu ul a:link, #menu ul a:visited{
display: inline-block;
color: #ffffff;
width: 90px;
padding: 5px;
text-decoration: none;
font-size: 12px;
font-weight: bold;
text-align: center;
}
#menu ul a:hover, #menu ul a:active {
background: #f28c3d;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
}
Index.php Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>NHYC - Ohio</title>
<link href="nhyc_styles.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="container">
<div id="headercont">
<div id="header">
<p align="right"><img src="img/socialmedia_icons.png" alt="Social Media" border="0" usemap="#socialmedia" style="padding-right:15px; padding-top: 18px;"/>
<map name="socialmedia" id="socialmedia">
<area shape="rect" coords="2,4,27,25" href="#" target="_blank" alt="Facebook" />
<area shape="rect" coords="42,4,69,24" href="#" target="_blank" alt="Twitter" />
</map>
</p>
</div> <!--End of header-->
<div id="picheader">
<div id="menu">
<ul>
<li>About Us</li>
<li>Mission</li>
<li>Services</li>
<li>Admission</li>
<li>Employment</li>
<li>Contact</li>
</ul>
</div>
<!--End of navigation-->
</div> <!--End of picheader-->
</div> <!--End of headercont-->
<div id="contentbox">
<div id="contentcont">
<div id="textcont">
<?php
if (!isset($_REQUEST['topic']))
include("aboutus.php");
else
{
$topic = $_REQUEST['topic'];
$nextpage = $topic . ".php";
include($nextpage);
} ?>
</div><!--End of textcont-->
<div id="linkcont">
<h3>Resources</h3>
<ul class="links">
<li>Link #1</li>
<li>Link #2</li>
<li>Link #3</li>
<li>Link #4</li>
</ul>
</div> <!--End of linkcont-->
</div>
</div> <!--End of contentbox-->
</div> <!--End of container-->
<div id="copybox">
2013 © NHYC
</div> <!--End of copybox -->
</body>
</html>
#contentbox {
overflow: hidden;
}
...will correct your issue.
You have an uncleared float there, and overflow: hidden will clear it. Read more about block formatting context (the weird hidden CSS nuance that overflow: hidden applies) here.