I am working on a website and I have an unordered list of buttons in my HTML, after which there is more content. But the problem is that sections are stacked on top of those buttons. #advertising
is 0px in height, that is probably why it is being stacked on top of the buttons.
I do not know how to solve this problem, though.
EDIT: Deleted line 8. That was debugging purpose, not related to the question.
My HTMLcode
<!DOCTYPE html>
<html>
<head>
<title>Zien! Woningmarketing</title>
<link href='http://fonts.googleapis.com/css?family=Titillium+Web:400,300,600,700' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="css/mobile.css"/>
</head>
<body>
<header>
<nav>
<figure>
<span class="helper"></span><img src="http://placehold.it/180x55" alt="Zien Woningmarketing"/>
</figure>
<a href="#"><img src="http://placehold.it/45x20" alt="Menuknop: open het menu"/></a>
</nav>
</header>
<section id="intro-image">
<figure>
<img src="img/foto-bg.png" alt="Professionele woningfotografie"/>
</figure>
<h1><span>Professionele Woningfotografie</span></h1>
</section>
<section id="wat-doen-we">
<h2>Wat doen we?</h2>
<span>We verzorgen <span class="em">krachtige</span> en <span class="em">mooie</span> woningvisualisaties</span>
</section>
<section id="buttons">
<ul>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>Fotografie</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
<hr />
</li>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>360° foto's</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
<hr />
</li>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>Plattegronden</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
<hr />
</li>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>Artist Impressions</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
<hr />
</li>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>Video</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
<hr />
</li>
<li>
<ul>
<li><img src="http://placehold.it/60x60" alt="icon" /></li>
<li><span>Inmeten</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" alt="chevron" /></a></li>
</ul>
</li>
</ul>
</section>
<section id="advertising">
<figure>
<img src="img/advertising-bg.png" alt="" />
<figcaption>
<span>“Creative without strategy is called 'art'.</span>
<span>Creative with strategy is called 'advertising'.”</span>
</figcaption>
<em>- Jef I. Richards</em>
</figure>
</section>
<section id="wat-nog-meer">
<h2>Wat doen we nog meer?</h2>
<span>We zorgen voor <span class="em">marketing</span> om je woning te <span class="em">promoten</span></span>
</section>
<section id="marketing">
<ul>
<li>
<ul>
<li><span>Woningmarketing</span></li>
<li><a href="#"><img src="http://placehold.it/15x60" /></a></li>
</ul>
</li>
</ul>
</section>
</body>
</html>
CSSFile
html, body, * {
margin: 0;
padding: 0;
border: 0;
font-size: 18px;
}
header nav {
background-color: rgb(0, 0, 0);
width: 100%;
height: 75px;
}
header nav figure {
display: inline;
}
header nav figure img {
margin-left: 7.142857%;
position: relative;
top: 50%;
height: 55px;
margin-top: -27.5px; /* negative half of the height */
}
header nav a img {
margin-right: 7.142857%;
float: right;
position: relative;
top: 50%;
height: 20px;
margin-top: -10px; /* negative half of the height */
}
#intro-image figure img{
position: relative;
top: -40px;
z-index: -1;
width: 100%;
box-shadow: 0 0 64px black;
}
#intro-image h1{
position: absolute;
top: 300px;
text-align: center;
width: 100%;
}
#intro-image h1 span{
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
color: white;
font-size: 2em;
text-transform: uppercase;
text-shadow: 2px 2px 2px black;
}
#wat-doen-we{
text-align: center;
}
#wat-doen-we h2{
font-family: 'Titillium Web', sans-serif;
font-size: 12pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
font-weight: 400;
}
#wat-doen-we span{
font-family: 'Titillium Web', sans-serif;
font-size: 18pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
}
#wat-doen-we span.em{
color: rgb(214, 55, 45);
font-size: 1em;
}
#buttons{
margin-top: 40px;
}
#buttons ul{
list-style-type: none;
height: 90px;
}
#buttons ul li{
display: block;
}
#buttons ul li ul{
background-color: rgb(214, 55, 45);
clear: both;
}
#buttons ul li ul li{
display: inline;
}
#buttons ul li ul li img{
margin-left: 10.4285714%;
float: left;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
#buttons ul li ul li span{
margin-left: 5%;
position: relative;
top: 50%;
height: 40px;
margin-bottom: -20px;
vertical-align: baseline;
font-family: 'Titillium Web', sans-serif;
text-transform: uppercase;
color: rgb(246, 246, 246);
}
#buttons ul li ul li a img{
float: right;
margin-right: 7.142857%;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
#buttons ul li ul li a img:hover{
box-shadow: 0 0 12px rgb(246, 246, 246);
}
hr{
color: rgb(246, 246, 246);
background-color: rgb(246, 246, 246);
height: 1px;
}
#advertising{
clear: both;
}
#advertising figure img{
width: 100%;
padding-top: 40px;
}
#advertising figure figcaption{
position: absolute;
top: 625px;
text-align: center;
width: 100%;
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
color: white;
font-size: 1.25em;
text-transform: uppercase;
display: block;
text-shadow: 2px 2px 2px black;
}
#advertising figure em{
display: block;
position: absolute;
top: 710px;
right: 20px;
color: white;
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
font-size: 1em;
}
#wat-nog-meer{
text-align: center;
clear: both;
}
#wat-nog-meer h2{
font-family: 'Titillium Web', sans-serif;
font-size: 12pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
font-weight: 400;
}
#wat-nog-meer span{
font-family: 'Titillium Web', sans-serif;
font-size: 18pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
}
#wat-nog-meer span.em{
color: rgb(214, 55, 45);
font-size: 1em;
}
#marketing{
padding-top: 80px;
}
#marketing ul{
list-style-type: none;
height: 90px;
clear: both;
}
#marketing ul li{
display: inline-block;
}
#marketing ul li ul{
background-color: rgb(214, 55, 45);
clear: both;
}
#marketing ul li ul li{
display: inline;
}
#marketing ul li ul li span{
margin-left: 5%;
position: relative;
top: 50%;
height: 40px;
margin-bottom: -20px;
vertical-align: middle;
font-family: 'Titillium Web', sans-serif;
text-transform: uppercase;
color: rgb(246, 246, 246);
}
#marketing ul li ul li a img{
float: right;
margin-right: 7.142857%;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
The problem is caused by the fact that your sections have a fixed height, and the content of the #buttons sections is exceeding the height of 500 pixels.
Try changing
section { height:500px; }
to
section { min-height:500px; }
Update two things :
Demo : JSFiddle
Updated CSS :
html, body, * {
margin: 0;
padding: 0;
border: 0;
font-size: 18px;
}
section {
height: 500px;
}
header nav {
background-color: rgb(0, 0, 0);
width: 100%;
height: 75px;
}
header nav figure {
display: inline;
}
header nav figure img {
margin-left: 7.142857%;
position: relative;
top: 50%;
height: 55px;
margin-top: -27.5px; /* negative half of the height */
}
header nav a img {
margin-right: 7.142857%;
float: right;
position: relative;
top: 50%;
height: 20px;
margin-top: -10px; /* negative half of the height */
}
#intro-image figure img {
position: relative;
top: -40px;
z-index: -1;
width: 100%;
box-shadow: 0 0 64px black;
}
#intro-image h1 {
top: 300px;
text-align: center;
width: 100%;
}
#intro-image h1 span {
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
color: white;
font-size: 2em;
text-transform: uppercase;
text-shadow: 2px 2px 2px black;
}
#wat-doen-we {
text-align: center;
}
#wat-doen-we h2 {
font-family: 'Titillium Web', sans-serif;
font-size: 12pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
font-weight: 400;
}
#wat-doen-we span {
font-family: 'Titillium Web', sans-serif;
font-size: 18pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
}
#wat-doen-we span.em {
color: rgb(214, 55, 45);
font-size: 1em;
}
#buttons {
margin-top: 40px;
height: 540px !important;
}
#buttons ul {
list-style-type: none;
height: 90px;
}
#buttons ul li {
display: block;
}
#buttons ul li ul {
background-color: rgb(214, 55, 45);
clear: both;
}
#buttons ul li ul li {
display: inline;
}
#buttons ul li ul li img {
margin-left: 10.4285714%;
float: left;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
#buttons ul li ul li span {
margin-left: 5%;
position: relative;
top: 50%;
height: 40px;
margin-bottom: -20px;
vertical-align: baseline;
font-family: 'Titillium Web', sans-serif;
text-transform: uppercase;
color: rgb(246, 246, 246);
}
#buttons ul li ul li a img {
float: right;
margin-right: 7.142857%;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
#buttons ul li ul li a img:hover {
box-shadow: 0 0 12px rgb(246, 246, 246);
}
hr {
color: rgb(246, 246, 246);
background-color: rgb(246, 246, 246);
height: 1px;
}
#advertising {
clear: both;
}
#advertising figure img {
width: 100%;
padding-top: 40px;
}
#advertising figure figcaption {
top: 625px;
text-align: center;
width: 100%;
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
color: white;
font-size: 1.25em;
text-transform: uppercase;
display: block;
text-shadow: 2px 2px 2px black;
}
#advertising figure em {
display: block;
top: 710px;
right: 20px;
color: white;
font-family: 'Titillium Web', sans-serif;
font-weight: 400;
font-size: 1em;
}
#wat-nog-meer {
text-align: center;
clear: both;
}
#wat-nog-meer h2 {
font-family: 'Titillium Web', sans-serif;
font-size: 12pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
font-weight: 400;
}
#wat-nog-meer span {
font-family: 'Titillium Web', sans-serif;
font-size: 18pt;
color: rgb(64, 64, 64);
text-transform: uppercase;
}
#wat-nog-meer span.em {
color: rgb(214, 55, 45);
font-size: 1em;
}
#marketing {
padding-top: 80px;
}
#marketing ul {
list-style-type: none;
height: 90px;
clear: both;
}
#marketing ul li {
display: inline-block;
}
#marketing ul li ul {
background-color: rgb(214, 55, 45);
clear: both;
}
#marketing ul li ul li {
display: inline;
}
#marketing ul li ul li span {
margin-left: 5%;
position: relative;
top: 50%;
height: 40px;
margin-bottom: -20px;
vertical-align: middle;
font-family: 'Titillium Web', sans-serif;
text-transform: uppercase;
color: rgb(246, 246, 246);
}
#marketing ul li ul li a img {
float: right;
margin-right: 7.142857%;
position: relative;
top: 50%;
height: 60px;
margin-top: -30px; /* negative half of the height */
}
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