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