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