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