<html>
<body>
<style type="text/css">
div {
display: inline-block;
padding: 0;
margin: 0;
height: 2em;
width: 24%;
}
.one {
background-color: red;
min-width: 20em;
}
.two {
background-color: blue;
}
.three {
background-color: green;
}
.four {
background-color: purple;
}
</style>
<div class="one">
</div><div class="two">
</div><div class="three">
</div><div class="four">Hi!</div>
</body>
</html>