Element block pseudo-element :after generated with margin 0px box-sizing content-box transform box-shadow 20% 300px 1px rgba(255,0,0,1) background display block height auto border-radius float none transition z-index auto cursor default line-height 1 width 160px font-weight normal border 0px rgba(0,0,0,1) solid text-shadow 1px 1px 1px rgba(0,0,0,0.2) padding 20px overflow hidden position static font-size 16px