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