Element block pseudo-element :after generated with transition box-shadow 1px 1px 1px rgba(0,0,0,0.3) padding 20px box-sizing content-box margin 0px width 160px position static display block transform border 0px rgba(0,0,0,1) solid height auto float none border-radius overflow hidden cursor default font-weight normal line-height 1 z-index auto font-size 16px background text-shadow 1px 1px 1px rgba(0,0,0,0.2)