How do I add a Font Awesome icon to input field?

Question

How do I use the search icon included in Font Awesome for input? I have a search feature on my site (based on PHPmotion), that I want to use for the search.

Here\'s

Answer 1

.fa-file-o {
    position: absolute;
    left: 50px;
    top: 15px;
    color: #ffffff
}