Element block pseudo-element :before generated with z-index auto width 160px float none transition font-weight normal border-radius font-size 16px box-shadow 1px 1px 4px rgba(0,0,0,0.2) box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) background transform position static cursor default border 0px rgba(0,0,0,1) solid line-height 1 padding 20px display block margin 0px overflow hidden height auto