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