What to add to URL to scroll down to an element code example

Example 1: scroll to a section of your page html

html {
  scroll-behavior: smooth;
}

Example 2: links and when you click on these link it will scroll the page to the respective section.

$("nav").find("a").click(function(e) {
    e.preventDefault();
    var section = $(this).attr("href");
    $("html, body").animate({
        scrollTop: $(section).offset().top
    });
});