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