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