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A class selector in CSS looks like this:

.class {


The word "class" in that code above can be anything. It refers to the attribute on HTML elements. See the relationship between these two things:

<a href="#" class="big-button">Push Me</a>
.big-button {
   font-size: 60px;

You can limit a class selector to a specific kind of element: {
  list-style: none;

By itself, a class selector has a specificity value of 0, 0, 1, 0. That's "more powerful" than just an element selector (like: a { }) but less powerful than an ID selector (like #header { }).

Browser Support

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  1. 0, 0, 1, 0 ,

    Understanding Specification is very Important in CSS

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Posting Code

  • Use Markdown, and it will escape the code for you, like `<div class="cool">`.
  • Use triple-backticks for blocks of code.
      <h1>multi-line block of code</h1>
      <span>be cool yo.</span>
  • Otherwise, escape your code, like <code>&lt;div class="cool"&gt;</code>. Markdown is just easier though.

Current ye@r *

*May or may not contain any actual "CSS" or "Tricks".