Element block pseudo-element :before generated with margin 2px background z-index auto transform cursor default height auto padding 20px border 0px rgba(0,0,0,1) solid transition float none line-height 1 font-weight normal width 300px text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) border-radius font-size 16px box-sizing content-box position static overflow hidden display block