<!DOCTYPE html>
<html>
<head>
<style>
.button {
background-color: #4CAF50; /* Green */
border: none;
color: white;
padding: 15px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
cursor: pointer;
float: left;
}
.button:hover {
background-color: #3e8e41;
}
</style>
</head>
<body>
<h2>Button Groups</h2>
<p>Remove margins and float the buttons to create a button group:</p>
<button class="button">Button</button>
<button class="button">Button</button>
<button class="button">Button</button>
<button class="button">Button</button>
<p style="clear:both"><br>Remember to clear floats after, or else will this p element also float next to the buttons.</p>
</body>
</html>