Hello, @Lasitha851,
Thanks for the login access. I have added the Custom CSS code in the theme options as you can see in this image: https://postimg.cc/XZh0xrPs by adding this code your issue is resolved. Here is the resulting image: https://postimg.cc/K1pXvKmm
Now, please check back to your site after clearing the browser cache.
Regards 8Themes Team.