title: What does -webkit- mean as in -webkit-transition?
body: <p>What does <code>-webkit-</code> mean as in <code>-webkit-transition</code>, <code>-webkit-transform</code>, etc. What is its function? Why do i have to use <code>-webkit-transition</code> and <code>transition</code> together instead of just using <code>transition</code>?</p>