Element block pseudo-element :before generated with padding 20px box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition box-sizing content-box background z-index 4 text-shadow height auto border-radius transform line-height 1 position static display block width auto font-size 16px opacity 1 cursor default float none font-weight normal border 0px rgba(0,0,0,1) solid overflow visible outline none margin 0px