Change CSS pseudo selector

This may be outdated but it is no longer postponed.

In line with CSS3 standards, using double colons (::) for pseudo-elements like ::before and ::after is recommended to differentiate them from pseudo-classes

• Technical Accuracy: ::before is technically correct for pseudo-elements like ::before and ::after, following the CSS3 standard, which differentiates pseudo-elements (::) from pseudo-classes (:).
• Browser Support: Older browsers, such as IE8, support only the single-colon :before. All modern browsers support both, favoring backward compatibility.
• Consistency: While ::before is preferred, some developers use :before for historical consistency, especially when older browser support is needed