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