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