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