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