Selectors

HTML is a tree. We nest elements inside and underneath each other.

We can pull off parts of this tree for styling using CSS selectors.

Style tags

We can put CSS onto our page using a style tag. Later we'll see how we can extract our styles into a separate document.

<style>
  /* Styles go here */
</style>

We then write selectors to trim parts of the tree, and add rules, like this:

<style>
  h1 {
    color: red;
    font-size: 30px;
  }
  p {
    color: blue;
  }
</style>

We can put the style tag in the head of our page like so:

<!DOCTYPE html>
<html>
<head>
  <title></title>
  <style>
    /* Styles go here */
  </style>
</head>
<body>
  <h1>
    CSS Selectors are better
  </h1>
  <p>
    Because they apply
    <strong>
      to the whole page!
    </strong>
  </p>
</body>
</html>

Exercise - Style the page

Use a style tag and selectors to solve the following:

Make the h1 font-weight: normal
Style the body using a sans-serif font.
Add a couple of dozen lines of text to the paragraph. Now set line-height:2em for double spacing.
Add a couple ore paragraphs. Set top and bottom margins to add spacing between the paragraphs.
Use letter-spacing:0.1em on the paragraphs to open the text out a little.