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