Element block pseudo-class :active generated with border-radius background float none border 0px rgba(0,0,0,1) solid width 100px padding 20px position relative height 100px overflow hidden z-index auto margin 0px box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition text-shadow line-height 1 box-sizing content-box display block transform cursor default font-weight normal font-size 16px opacity 1.00