Assertion:
While the author CAN legally omit using the HTML comment to encapsulate the Style information, most older browsers will display the style information in these cases as document content. Authors are strongly encouraged to use the HTML Comment for the Style element to prevent this from happening.

Simple DIV element with class="test". Style element IS nested in a comment, and contains: ".test { background-color: green; color: yellow }":
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This is a div
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