How change content value of pseudo :before element by Javascript
<p>I have the grap constructured by CSS, which is dynamically changes by JS. I show graph max value by pseudo element as:</p>

<pre><code>.graph:before {
    content:""; //value that want set by JS
    position:absolute;
    top:0;
    left:0;
}
</code></pre>

<p>That's why I need to set this value by JS. I tried <code>$(".graph:before").css("content", hh);</code> but it didn't help. How to get that value?</p>
