use class name in css code example
Example 1: css class attribute
<h1 class="Class">Content</h1>
<h1 id="id">Content</h1>
Css:
.class
#id
Example 2: html classes
<p class="ClassExample">ClassExample!!</p>
<h1 class="Class">Content</h1>
<h1 id="id">Content</h1>
Css:
.class
#id
<p class="ClassExample">ClassExample!!</p>