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