Element block pseudo-element :after generated with height 300px display block border 14px rgba(0,0,0,1) solid line-height 1 font-weight normal border-radius font-size 16px overflow hidden margin auto transform width 300px background text-shadow z-index auto position static padding auto box-sizing content-box cursor default float none transition box-shadow 0px 0px 15px rgba(0,0,0,0.5)