HTML - <link>

Including a stylesheet

To include a stylesheet in a page, use the following syntax:

<link href="style.css" rel="stylesheet">

Providing alternative stylesheets

You can also specify alternative style sheets.

The user can choose which style sheet to use by choosing it from the View>Page Style menu. This provides a way for users to see multiple versions of a page.

<link href="default.css" rel="stylesheet" title="Default Style">
<link href="fancy.css" rel="alternate stylesheet" title="Fancy">
<link href="basic.css" rel="alternate stylesheet" title="Basic">

Stylesheet load events

You can determine when a style sheet has been loaded by watching for a load event to fire on it; similarly, you can detect if an error has occurred while processing a style sheet by watching for an error event:

<script>
function sheetLoaded() {
  // Do something interesting; the sheet has been loaded
}

function sheetError() {
  alert("An error occurred loading the stylesheet!");
}
</script>

<link rel="stylesheet" href="mystylesheet.css" onload="sheetLoaded()" onerror="sheetError()">