hey all. I have a question. I’ve been using a CSS metabox that adds CSS on a per-page, per-post level, which is awesome. However, I got the intuition that if I bundle the CSS that I wish to use on certain pages, some .php could be woven that would affect ALL the posts set in that way.
Earlier, X-Theme helped with a .php that affected all posts tagged with the ‘timeline’ tag, and i’d love to add the CSS to all posts that are similarly tagged
this is what i’d like to add -->
/* for making post transparent */
.x-full-width-active .x-container.main:not(.x-row):not(.x-grid)::before {
background: transparent;
}
.entry-wrap { background: white; padding: 40px; }
That being said, simply seeing the form of the php would help me design other options for posts tagged in a certain way as well 
Help?