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