<p>The class&nbsp;<code>.active</code>&nbsp;makes a button appear pressed, and the&nbsp;<code>disabled</code>&nbsp;attribute makes a button unclickable. Note that &lt;a&gt; elements do not support the disabled attribute and must therefore use the&nbsp;<code>.disabled</code>&nbsp;class to make it visually appear disabled.</p>

<p>The class&nbsp;<code>.active</code>&nbsp;makes a button appear pressed, and the&nbsp;<code>disabled</code>&nbsp;attribute makes a button unclickable. Note that &lt;a&gt; elements do not support the disabled attribute and must therefore use the&nbsp;<code>.disabled</code>&nbsp;class to make it visually appear disabled.</p>

<p>The class&nbsp;<code>.active</code>&nbsp;makes a button appear pressed, and the&nbsp;<code>disabled</code>&nbsp;attribute makes a button unclickable. Note that &lt;a&gt; elements do not support the disabled attribute and must therefore use the&nbsp;<code>.disabled</code>&nbsp;class to make it visually appear disabled.</p>

<p>&nbsp;</p>
