Get your own website Result Size: 625 x 565
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<!DOCTYPE html>
<html>
<head>
<style>
* {
  box-sizing: border-box;
}
.header, .footer {
  background-color: grey;
  color: white;
  padding: 15px;
}
.column {
  float: left;
  padding: 15px;
}
.clearfix::after {
  content: "";
  clear: both;
  display: table;
}
.menu {
  width: 25%;
}
.content {
  width: 75%;
}
.menu ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}
.menu li {
  padding: 8px;