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