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