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