Element block pseudo-element :after generated with z-index auto width 100px border 50px rgba(0,0,0,0) solid line-height normal background font-size 100% overflow visible box-sizing content-box float none height 0px font-weight normal padding -7px transition border-radius text-shadow margin 0px cursor default transform display block position static outline none opacity 1 box-shadow 5px 5px 8px rgba(0,0,0,0.5)