Element block pseudo-element :after generated with box-sizing content-box background opacity 1 z-index auto transition overflow visible font-size 100% padding 0px box-shadow 0px 0px 8px rgba(255,0,0,1) display block border-radius margin 0px float none line-height normal outline none height 100px font-weight normal position static transform cursor default border 0px rgba(0,0,0,1) solid width 150px text-shadow