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