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