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CSS :before pseudo-element

Definition

The :before pseudo-element inserts some content before the content of an element.

The style below will play a sound before each occurrence of an <h1> element:

h1:before
{
content: url(beep.wav)
}

Use :before to insert some content before the content of an element (Does not work in IE)
This example demonstrates how to use the :before pseudo-element to insert an image before the content of an element.