Cascading style sheets (CSS)
Most or all webpages use CSS. CSS which stands for Cascading Style Sheets can change and customize the color of links and scrollbars and plenty more.

To change the color of your links
<STYLE type="text/css"> <!--A:link{color:color here;text-decoration:none} A:visited{color:color here;text-decoration:none} A:active{color:color here;text-decoration:line-through} A:hover{color:color here;text-decoration:underline overline;background-color:color here}--></STYLE>

A link and active color means the color of the link when it is normal.
A visited means the color of the link when it has been clicked on or visited before.
And A hover color means the color the link is when you put your mouse over the link.

Link Decorations
These are link decoration codes. Use the code to replace text-decoration:none , put the text decoration code where it says 'none'.