Element block pseudo-element :before generated with transition transform margin 0px display block border-radius padding 20px box-sizing content-box z-index auto width 160px line-height 1 overflow hidden border 0px rgba(0,0,0,1) solid background float none cursor default box-shadow 1px 1px 0px rgba(0,0,0,0.5) position static font-weight normal font-size 16px height auto text-shadow 1px 1px 1px rgba(0,0,0,0.2)