Elements of CSS

A CSS declarative statement looks as :

h1{font-size:24px;}

where:

• h1: selector
• font-size: property
• 24px: value

Types of selectors:

• Tag
  It is used to redefine a html tag
  p{font-family: Times, serif;}
• ID
  It is used to name a unique element
  #nav {colour: red;}
• Class
  Used to address a set of elements
  .post {padding: 10px;}
• pseudo selectors (classes, elements)

Combining selectors:

• Contextual
• Grouping