Можно воспользоваться стандартной функцией:
html {
scroll-behavior: smooth;
}
Но такой подход ограничен в версиях:
- Chrome: 61.0
- Edge: 79.0
- Firefox: 36.0
- Safari: 14.0
- Opera: 48.0
Для cross-browser подхода можно написать простой скрипт:
<script src="[[https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js](https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js)]([https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js](https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js))"></script>
<script>
$(document).ready(function(){
// Add smooth scrolling to all links
$("a").on('click', function(event) {
// Make sure this.hash has a value before overriding default behavior
if (this.hash !== "") {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top
}, 800, function(){
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
} // End if
});
});
</script>
И на Vanilla JavaScript:
const links = document.querySelectorAll("a");
for (const link of links) {
link.addEventListener("click", clickHandler);
}
function clickHandler(e) {
e.preventDefault();
const href = this.getAttribute("href");
const offsetTop = document.querySelector(href).offsetTop;
scroll({
top: offsetTop,
behavior: "smooth"
});
}