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