Element button pseudo-element :before generated with overflow hidden opacity 1.00 padding 20px position static font-size 16px background margin 0px transition font-weight normal border 1px rgba(0,0,0,1) solid width 20% float none z-index auto line-height 1 transform text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius cursor default display block box-shadow 1px 1px 1px rgba(0,0,0,0.3) height 100% box-sizing content-box