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