S2JS - More HTML and introducing <b>CSS</b> : Class example

In the example below, there's a couple of things to notice

The class names are just things we've made up, like variable names
Each HTML tag has an attribute to specify what class it belongs to
In the CSS style section, class names have a dot in front of them

<style> .happy {background-color:green} .angry {background-color:orange; color:red} .yelling {font-size: 150%} </style> <button class="happy"> Button 1 </button> <button class="angry"> Button 2 </button> <div class="yelling">Here is a Div</div>