Why Does OnClick Event Only Working Once In Html?

I have the following html and javaScript. The onclick showHiddenDiv event only work for the first

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Copy

Solution 2:

Change <div id="id-2" to <div id="div-2".

Solution 3:

There is an error in your html also id-2 should be div-2.

<p class="date">Thursday Sep 11</p>
         <div id="div-2" style="display:none">Completed. 
         <a>The web page can be found at this link.</a></div>

You need opening a tag.