1. to make text gradient

    background: linear-gradient(to right, rgb(20, 27, 27) 0%, #000000 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

2. when using js (pure or jquery) to add html content to existed html file (dynamic content), if using jquery, use on function rather than event functions (click, hover) as those direct funcs will only handle non-dynamical objects (already created at the time begin reading js files) but on would allow working with dynamically created ones.