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