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Three ways to insert CSS – cascading style sheets

cascading style sheets

CSS How To…

When a browser reads a style sheet, it will format the HTML document according to the information in the style sheet.

working with CSS
working with CSS

Three Ways to Insert CSS

There are three ways of inserting a style sheet:

  • External style sheet
  • Internal style sheet
  • Inline style

External Style Sheet

With an external style sheet, you can change the look of an entire website by changing just one file!

Each page must include a reference to the external style sheet file inside the <link> element. The <link> element goes inside the <head> section:

Example

<head>
<link rel="stylesheet" type="text/css" href="mystyle.css">
</head>
Try it Yourself »

An external style sheet can be written in any text editor. The file should not contain any html tags. The style sheet file must be saved with a .css extension.

Here is how the “mystyle.css” looks:

body {
  background-color: lightblue;
}

h1 {
  color: navy;
  margin-left: 20px;
}

Note: Do not add a space between the property value and the unit (such as margin-left: 20 px;). The correct way is: margin-left: 20px;

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