You can also specify that only specific HTML elements should be affected by a
class. In the example below, all <p> elements with class="center" will be made green and center-aligned:
HTML file:
Displayed by browser:
<style>
p.center {
text-align: center;
color: green;
}
</style>
<body>
<h1 class="center">Heading is unaffected.</h1>
<p class="center">Green and center-aligned paragraph.</p>
</body>
Heading is unaffected.
Green and center-aligned paragraph.
Just as with the ID, NEVER start a class name with a number!