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