How accurate is the use of special characters in css names, as in tailwind css framework?
I mean, I like it very much and I want to use it. I did some research. Either most of the sources did not say anything, or the source connections were broken.
Actually,
.hover\:red:hover
{
    color: red;
}<p class="hover:red">Dummy (Hover me)</p>Is it true that using this will work properly on all devices and third party browsers, except IE8 and below browsers?
Finally, is there a disadvantage for search engines? So SEO, usability, accessibility etc.
 
    