What are the potential issues with using deprecated HTML tags like <center> in PHP code?

Using deprecated HTML tags like <center> in PHP code can lead to validation errors and may not display correctly in modern browsers. It is recommended to use CSS for centering elements instead of deprecated HTML tags. 

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;style&gt;
        .center {
            text-align: center;
        }
    &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;div class=&quot;center&quot;&gt;
        &lt;h1&gt;This is centered using CSS&lt;/h1&gt;
    &lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;

Keywords

deprecated HTML tags <center> PHP code issues

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