Hi @a95web
Is this the code that you tried?
.dgwt-wcas-search-form {
opacity: 1 !important;
}
This should add FiboSearch opacity right away, but you need to place this code in Paste it into Appearance -> Customize -> Additional CSS to make sure it will be applied at the same time as the rest of the CSS (probably in the footer), which I assume loads in minified in the footer.
If you use a plugin that is used for minification and caching, maybe it also scrapes the CSS from the document and adds it to the file, also delaying its loading. In this case, it might be a good idea to disable this option. Also, you can try to exclude the FiboSearch CSS file from this process.
Unfortunately, I can’t give you any more advice without knowing your website URL.
Regards,
Kris