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