We conclude our selection on CSS properties with the introduction of some pseudo-classes, typically but not solely used with <a>, the anchor tag. The anchor tag is used mainly for links. To make it visible that they are indeed links, the default styling of <a> happens to be a blue color and the text is underlined, which is not very attractive.

Using pseudo-classes, you can give an anchor tag, in theory any tag, a different look depending on where the cursor is, relative to the link and whether or not the link has already been visited. Here is an example:

a:link {
text-decoration:none;  /* switches off the underline */
}
a:hover {
color:white;   /* changes color to white when the curser hangs over it (hover)  */
}
a:visited {
color:yellow;   /* changes the color to indicate that you already visited that link */
}