How to correctly register compatibility with IE?

Question

HTML

It is necessary that on all browsers below IE 9 this code should not be visible.
I wrote, but the validator swears that this is not a comment.

<![if gte IE 9]>
<div class="review_border_top hidden-sm hidden-xs">
</div>
<div class="review_border_bottom hidden-sm hidden-xs">
<div>
</div>
</div>
<![endif]>

Error: Bogus comment.

Answer 1

<!--[if gte IE 9]><!-->
            some code
<!--<![endif]-->

Answer 2

<!--[if IE]>
<link href="ie.css" rel="stylesheet">
<![endif]-->

Read more here: zooks.ru/web/355

Answer 3

More details:
1. w3.org - comments (clause 8.1.6 Comments)
2. htmlbook.ru - comments
About conditional comments:
1. Conditional comments on MSDN
2. Deprecation of conditional comments in IE 10 and higher