C# Selenium how can I implement click on button without id
<p>C# Selenium how can I implement click on button without id</p>

<p>Here is the html:</p>

<pre><code>&lt;div class="fe-margin"&gt; 
  &lt;button class="btn btn-default" data-bind="click: $root.addParameter, enable: $root.selectedParameter() == null" type="button"/&gt;
  Add parameter button
&lt;/div&gt;
</code></pre>