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