.html css code example

Example 1: universal selector incss'

* {
  margin: 0;
  padding: 0;
}

Example 2: what is css

Q: What is CSS?

A: Cascading Style Sheets is a style sheet language used for defining the
appearance of a text written in a markup language such as HTML. CSS is the
foundation code of the World Wide Web, alongside HTML and JavaScript.

Example 3: css []

div[class*="test"] {
  background: #ffff00;
}