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