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