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