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