Set ribbon smaller via CSS

Thanks to my colleague (Laurent Schoenaers) for following css:

body #s4-ribbonrow {background-color: #FFA113; margin-top: -20px;}
.ms-siteactionsmenuinner {background:transparent;background-color:#FFA113;border-color:#FFA113;}
.ms-cui-topBar2 {border-bottom:0px;}
.ms-cui-TabRowRight {margin-top: -12px !important; padding-top: 36px !important;}
.ms-cui-ribbonTopBars div {border-bottom:1px solid transparent;}
.s4-trc-container-menu {margin:0;} 

before:

after: