.rectangle { width: 360px; height: 40px }
.ie .rectangle { background-color: #FF0; color:black }
.ie9 .rectangle { background-color: #F90 }
.gecko .rectangle { background-color: #CCC }
.win.gecko .rectangle { background-color: #00F }
.win7.gecko .rectangle { background-color: #FCC }
.linux.gecko .rectangle { background-color: #C6C }
.opera .rectangle { background-color: #0F0 }
.konqueror .rectangle { background-color: #F33 }
.webkit .rectangle { background-color: #6FF; color:red }