How to dimish unwanted CSS
Briefly

WordPress often injects many CSS classes during HTML to theme conversion, which can disrupt the original layout and design intentions. Using specific CSS techniques like 'all: unset;' can help neutralize unwanted styles. However, 'display: contents' has its limitations, particularly with grid or flex structures, as it doesn't affect inner element styling. Using namespaced original CSS may also help control conflicts with inherited styles, indicating the need for organized output management in WordPress.
When converting HTML to WordPress themes, many CSS classes added by WordPress can interfere with the original layout and design, complicating matters.
The use of display: contents can make a div behave as if it doesn't exist, but it won't alter styles applied to inner elements.
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