<!DOCTYPE html>
<style>
#a {
width:40px;
height:40px;
background: blue;
}
</style>
<p>There should be a blue <em>square</em> below.</p>
<div id="a"></div>
<!DOCTYPE html>
<style>
#a {
width:40px;
height:40px;
background: blue;
}
</style>
<p>There should be a blue <em>square</em> below.</p>
<div id="a"></div>