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