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