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