Need someone to explain what script to use

I found a website in which when opened on the desktop display is white and if the mobile display is black but strangely in the title and description on the google search display both mobille or desktop that appears is black. some say to outsmart this using google translate script anyone knows how to apply this method please help me.

this case for website : cefroht.org



Thank you i hope someone can help me for this case