<p>I had the same issue where I wanted to expand all of the abstract sections on Arxiv automatically. Using the Chrome dev console I found this worked exactly like I wanted: </p>

<pre><code>('.abstract-full').css('display','inline')
</code></pre>

<p>Since the "abstract-full" class had display: none.</p>
Expanding all collapsible sections on a web page
<p>I am interested in finding out if there is a way to expand all the collapsible sections on a webpage simultaneously. A relevant section on the webpage I am looking at looks like this:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;tr&gt;
    &lt;td&gt;&lt;/td&gt;
    &lt;td style="..;"&gt;
        &lt;div style=".."&gt;
            &lt;span id=".." style="display:inline;"&gt;&lt;br /&gt;
                &lt;div style="display:inline"&gt; ... 
                &lt;/div&gt;
            &lt;/span&gt;
            &lt;span id="toHide1234" style="display:none;"&gt;&lt;br /&gt;
                &lt;div style="display:inline"&gt;
                    &lt;p&gt;.....&lt;/p&gt;
                &lt;/div&gt;
            &lt;/span&gt;
            &lt;a id="expcoll1234" href="JavaScript:expandcollapse('expcoll1234',1234)"&gt;
                expand
            &lt;/a&gt;
        &lt;/div&gt;
    &lt;/td&gt;
&lt;/tr&gt;</code></pre>
</div>
</div>
</p>

<p>As seen above, by clicking on <code>expand</code> link, this section would expand. Trouble is, there are hundreds of such <code>expand</code> links on the webpage I am interested in, and there are many such web pages I want to do this for. </p>

<p>Any thoughts on this would be much appreciated. I need a really simple way to do this, as I am not very well versed with web programming. Just know very elementary HTML. </p>