The accepted answer might be a bit outdated since we have Flexbox now. Give the container a min-height: 100vh
and the footer a margin-top: auto
so you don’t have to deal with absolute positioning and fixed heights.
body {
margin: 0;
}
.container {
display: flex;
flex-direction: column;
min-height: 100vh;
}
.header {
background-color: #FFCCCC;
}
.content {
background-color: #CCFFCC;
}
.footer {
background-color: #CCCCFF;
margin-top: auto;
}
<div class="container">
<div class="header">header</div>
<div class="content">content</div>
<div class="footer">footer</div>
</div>