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:

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

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