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