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