Element button pseudo-class :active generated with box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 160px font-size 16px height auto margin 0px border-radius font-weight normal background overflow hidden transform padding 20px transition box-sizing content-box cursor default float none display block line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) position static z-index auto border 2px rgba(0,0,0,1) solid