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