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