.engine1 {font-size: 24px}
.engine3 {font-size: 18px}
.engineerror { background-color:#F00;}
.engineidle .engineidle { display: inline; }
.engineidle .enginebusy { display: none; }
.enginebusy .engineidle { display: none; }
.enginebusy .enginebusy { display: inline; }