This is a generic error page which should help you in general with errors of this type. Refer below to the specific examples for more precise advice.

How to fix: The X element is obsolete. Use CSS instead.

Most Likely Cause and Fix

Your markup makes use of a <X> element which is no longer allowed in HTML.

Remove this element and achieve an equivalent effect with CSS.

What This Error Means

The <X> element is no longer allowed in HTML.

This error is alerting you to this fact and informing you that an equivalent end result can be achieved using CSS.

How To Fix It

Your markup makes use of a <X> element which is no longer allowed in HTML.

Remove this element and achieve an equivalent effect with CSS.

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