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