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