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