Element button pseudo-element :before generated with z-index auto box-shadow 1px 1px 1px rgba(0,0,0,0.3) position static float none font-size 16px cursor default font-weight normal border 0px rgba(0,0,0,1) solid line-height 1 width 160px transform margin 0px display block overflow hidden padding 20px transition border-radius box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) height auto background