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