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