body.appbranch:before {
    position: fixed;
    z-index: 10000;
    width: 100%;
    opacity: 0.8;
    text-align: right;
    pointer-events: none;
}
body.appbranch-test:before  { content: "TEST";  background-color: #ffff0040;   }
body.appbranch-beta:before  { content: "BETA";  background-color: #8df48f40;   }
body.appbranch-devel:before { content: "DEVEL"; background-color: #0482ff40;   }

body.appbranch-test  { background-color: #ffff0010; }
body.appbranch-beta  { background-color: #8df48f10; }
body.appbranch-devel { background-color: #0482ff10; }