Conditional Comments IE7 does not work

Question

I have a code HTML, one with a conditional to appear only in IE7 and below I put another code without conditional to appear in IE8 up and in other browsers, but when I open IE7 the browser is pulling the other code without the conditional. Someone knows a solution?

<!--[if IE 7]> 
HTML todo
<![endif]-->

Aqui viria outro *HTML* sem condicional

Answer 1

If I understand what you’re saying you want some sort of ELSE for the condition, could do this if !(IE 7), for example:

<!--[if IE 7]>
<p>Você esta usando Internet Explorer 7!</p>
<![endif]-->

<!--[if !(IE 7)]>
<p>Você esta usando outro navegador!</p>
<![endif]-->

However I recommend rethinking the use of this, because conditional comments do not work in modern browsers as stated by the page https://msdn.microsoft.com/pt-br/library/hh801214(v=vs.85). aspx, nay there is more support from Internet Explorer 10, however it is possible to make it work by emulating IE9 for example, just add this:

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9">

So I recommend going over all of this and abandoning these kinds of hacks maybe even create something simpler that still meets the expected functionality and behave equally in several browsers, I know it depends on experience, but this is the opportunity to improve, because supporting two different things can bring you as many headaches as trying to create something simple that runs at all.