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