Make comment tags universal across browsers_CSS/HTML

Under IE, the code located under this tag will not be displayed on the page, which is very useful for hiding some HTML code.
However, this tag is invalid under non-IE browsers; you can test the following code under IE and FF respectively to know the effect.

Copy code The code is as follows:

<comment id="CnLei"> Test: Hidden content &lt ;/comment>
<script type="text/javascript">
alert(document.getElementById("CnLei").innerHTML);
</script>

Solution:
Define comment {display:none;} in CSS to make it universal across browsers.

Copy code The code is as follows:

<style type="text/css">
comment {display:none;}
</style>
<comment id="CnLei"> Test: Hide content </comment>
<script type="text/javascript" >
alert(document.getElementById("CnLei").innerHTML);
</script>