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    <blockquote> <p>while I have some knowledge of css, I don't know how you use it within php script.</p> </blockquote> <p>Okay. </p> <p>Your PHP script is a PHP script on the server, and results in a regular HTML page for the user. [See the bottom of the answer, I'll try to give you a quick overview]</p> <p>You can use CSS exactly as you would with a plain HTML page, and it will work just fine despite being backed by PHP.</p> <p>This means <strong>do not use style="$style"</strong>. Style attributes are Bad. </p> <p>As it looks like you want to construct your CSS conditionally, my suggestion is either:</p> <ul> <li>Change a class using PHP, and have an external stylesheet which acts on that class</li> <li>Put the styles you're conditionally changing inside <code>&lt;style&gt;</code> tags in your header, and change those with PHP.</li> </ul> <p><strong>This answer will use the first option</strong> (Edited to take into account new information)</p> <p>In your PHP code, before your links:</p> <pre><code>if($toggle) { $questions.='&lt;div id="frm1"&gt;'; } else { $questions.='&lt;div id="frm2"&gt;'; } </code></pre> <p>In your PHP code, after your links:</p> <pre><code> $questions .= "&lt;/div&gt;"; </code></pre> <p>And finally, in either your external stylesheet, or your in-head <code>&lt;style&gt;</code> tags:</p> <pre><code>#frm1 { ... } #frm2 { ... } </code></pre> <p><br><br> <strong>Quick overview of server-side languages</strong></p> <p>So, web programming. This is generally done in two ways. <strong>client side</strong> (read: javascript) and <strong>server side</strong> (in your case, read: php, but there's a lot more to this).</p> <p>With a client side language like javascript, the code actually gets sent to the web browser. The web browser then modifies the contents of the page according to what the script says for it to do. This means your users can see the code, even turn it off in their web browser or execute other javascript in its place. </p> <p>With a server side language, there's a different workflow. </p> <ol> <li>The user asks for your webpage (identified by its URL)</li> <li>The web server (read: your webhosting) receives this request, and looks up what the webpage is</li> <li>Finding that the webpage is a php page, the <strong>server</strong> executes the php code</li> <li>The php code gives the server an html page (which you have built, as you can see, your php script outputs HTML)</li> <li>The server sends <strong>the resulting html code</strong> to the user</li> </ol> <p>Note that the web browser, which is the component doing all of the processing of HTML and CSS, never sees the php. By the time your php script reaches your users, it's just an html page.</p> <p>Because the web browser only sees an HTML page, there is no functional difference between using CSS on your php script, and using CSS on a regular HTML page. </p>
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    1. COI really appreciate your extensive answer. I updated my question a bit with the actual background I'm trying to use behind each question. I left it out before originally because I thought it would be easier to ask the question with just the color background. I understand that the css produces the same results in the php as it does in the html, but you seem to have to code it differently. If i was in html, I would do something like <div id=frm1> but the div tags don't seem to work in the php.
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    2. COIt will still work fine - <?php echo('<div id="frm1"> ... </div>'); ?>
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    3. COi.e. do exactly what you would do in HTML, but change the ID (or remove it entirely, or whatever) conditionally using PHP as given in the simplified example above. By the way, try viewing your HTML source in your webbrowser (Ctrl+U ?) to see if it looks correct -- if it's not coming out exactly how it would if you wrote a plain HTML page, then THAT is why it isn't working.
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