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