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