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