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