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