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