Selector {Declaration} H1 {color: red} Any H1 tag used in the site (<H1>)
Selector.Class {Declaration} H1.Alert {color: red} Any H1 tag that uses the class name of Alert (<HI Class="Alert">)
-OR- -OR-
.Class {Declaration} .Alert {color: red} Any tag that uses the class name of Alert (<XXX Class="Alert">)
Selector#ID {Declaration} H1#Alert {color: red} A H1 tag that uses the ID Alert (<HI ID="Alert">)
-OR- -OR-
#ID {Declaration} #Alert {color: red} A tag that uses the ID Alert (<XXX ID="Alert">)
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