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