What are the potential pitfalls of using outdated HTML elements like <font> and align attributes in PHP scripts, and how can they be avoided for better code quality?

Using outdated HTML elements like <font> and align attributes can lead to poor code quality, as they are not supported in modern web standards and can affect the responsiveness and accessibility of the website. To avoid this, it is recommended to use CSS for styling and layout purposes instead of inline HTML attributes.

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;style&gt;
        .red-text {
            color: red;
        }
    &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;p class=&quot;red-text&quot;&gt;This text is styled with CSS.&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;