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