/*
Source - https://stackoverflow.com/a/15374994
Posted by Danilo Kobold, modified by community. See post 'Timeline' for change history
Retrieved 2026-02-01, License - CC BY-SA 4.0
*/
#header {
width: 100%;
background-color: red;
height: 30px;
}
#container {
width: 300px;
background-color: #ffcc33;
margin: auto;
}
#first {
width: 100px;
float: left;
height: 300px;
background-color: blue;
}
#second {
width: 200px;
float: left;
height: 300px;
background-color: green;
}
#clear {
clear: both;
}