Support » Theme: Coldbox » CLS mobile issue & title font changing

  • Hi there. Love this theme but have a couple of technical queries.

    1. The title font displays as intended on my site homepage but changes to a different font on any other page/post. This seems to only happen when using Google Chrome desktop browser.

    2. I’m conscious about the Core Web Vitals algorithm update we’re being hit with next month. My desktop URLs are good but the mobile ones are rated as poor due to a ‘CLS issue: more than 0.25 (mobile)’. Is this a result of the theme and how can it be fixed?

    Many thanks for your help.


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  • Theme Author Toshihiro Kanai


    Hi Daniel,

    I’m really glad that you like the theme!

    Now let me answer your queries.

    1) It is an intended behaviour that it uses a different font for title on post list and single post/page. You can change the font so both use the same font:

    body .title-box {
      font-family: /* your desired font here */

    2) I reckon that those scores are something to do with the website’s performance. Website performance is always a hard thing to consider. It’s affected by so many factors like theme, plugins, and sometimes WordPress itself. WordPress isn’t actually made for performance, and it can sometimes load things you don’t need. Cutting those things out can make your website faster, but it may make website broken.

    I’m pretty sure that I have done almost everything to make the theme faster. This is a result of PageSpeed Insights for theme’s demo site and I think it gets reasonable score.

    There are two theme customizer options for improving the theme’s performance: “Use concatenated JS files” and “Enforce not to load jQuery” options. Although you should enable the concat JS files option always enabled, the “Enforce not to load jQuery” option requires some technical knowledge.

    I don’t know what makes your website slow, so you have to research and try to figure it out yourself. If you believe that you found any performance issues that can be fixed on the theme, please let me know. I’m happy to fix them 🙂

    I hope this answer helps you!

    Thread Starter dos83


    Thanks very much for your swift response, Toshihiro. I appreciate it and will investigate your suggestions.
    Keep up the good work, and thanks again for your time and efforts in creating this excellent theme.
    All the best,

Viewing 2 replies - 1 through 2 (of 2 total)
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