Hi @popajp,
Thanks for reaching us,
In the recent ColorMag Major updates, we have modified a few things with the theme that, includes the HTML markups, CSS, and various other code refactors. Since you are using the additional CSS code, you’ll need to update the CSS CLasses with the new one by checking with the latest version of the theme. You don’t need to recreate the CSS code but update it.
For example – For making the changes on the Post Title, you can achieve its class as shown in the screenshot here: https://prnt.sc/hl0KcN2avGSA. It’s class will be cm-entry-header. Under the class you can make the CSS modification such as color, font-size and so on. In a similar manner you can do for other section for your site.
I hope you are clear now. If you still have any confusion or issues while changing the Class and IDs, kindly let me know, and I will get back to you.
Regards