当到达内容的顶部/底部时，CSS属性允许覆盖浏览器默认的溢出滚动行为。

只需添加以下样式叠加:

.overlay {
   overscroll-behavior: contain;
   ...
}

Codepen演示

目前工作在Chrome, Firefox和IE(caniuse)

欲了解更多详细信息，请查看谷歌开发人员文章。

试试这个

var mywindow = $('body'), navbarCollap = $('.navbar-collapse');    
navbarCollap.on('show.bs.collapse', function(x) {
                mywindow.css({visibility: 'hidden'});
                $('body').attr("scroll","no").attr("style", "overflow: hidden");
            });
            navbarCollap.on('hide.bs.collapse', function(x) {
                mywindow.css({visibility: 'visible'});
                $('body').attr("scroll","yes").attr("style", "");
            });

如果有人正在寻找React函数组件的解决方案，你可以把它放在模态组件中:

 useEffect(() => {
    document.body.style.overflowY = 'hidden';
    return () =>{
      document.body.style.overflowY = 'auto';
    }
  }, [])

如果意图是禁用移动/触摸设备，那么最直接的方法是使用touch-action: none;。

例子:

const app = document.getElementById('app'); const overlay = document.getElementById('overlay'); let body = ''; for (let index = 0; index < 500; index++) { body += index + '<br />'; } app.innerHTML = body; app.scrollTop = 200; overlay.innerHTML = body; * { margin: 0; padding: 0; } html, body { height: 100%; } #app { background: #f00; position: absolute; height: 100%; width: 100%; overflow-y: scroll; line-height: 20px; } #overlay { background: rgba(0,0,0,.5); position: fixed; top: 0; left: 0; right: 0; height: 100%; padding: 0 0 0 100px; overflow: scroll; } <div id='app'></div> <div id='overlay'></div>

(该示例在Stack Overflow上下文中不起作用。您需要在一个独立的页面中重新创建它。)

如果你想禁用#app容器的滚动，只需添加touch-action: none;。

我想补充之前的答案，因为我试图这样做，一些布局打破了我切换到身体的位置:固定。为了避免这种情况，我还必须将body的高度设置为100%:

function onMouseOverOverlay(over){
    document.getElementsByTagName("body")[0].style.overflowY = (over?"hidden":"scroll");
    document.getElementsByTagName("html")[0].style.position = (over?"fixed":"static");
    document.getElementsByTagName("html")[0].style.height = (over?"100%":"auto");
}

React功能组件的一个解决方案是使用useEffect钩子。

下面是下面的代码示例(请注意useEffect定义):

import {useEffect, useRef} from "react";

export default function PopoverMenu({className, handleClose, children}) {
  const selfRef = useRef(undefined);

  useEffect(() => {
    const isPopoverOpenned = selfRef.current?.style.display !== "none";
    const focusedElement = document?.activeElement;
    const scrollPosition = {x: window.scrollX, y: window.scrollY};
    if (isPopoverOpenned) {
      preventDocBodyScrolling();
    } else {
      restoreDocBodyScrolling();
    }

    function preventDocBodyScrolling() {
      const width = document.body.clientWidth;
      const hasVerticalScrollBar = (window.innerWidth > document.documentElement.clientWidth);
      document.body.style.overflowX = "hidden";
      document.body.style.overflowY = hasVerticalScrollBar ? "scroll" : "";
      document.body.style.width = `${width}px`;
      document.body.style.position = "fixed";

    }

    function restoreDocBodyScrolling() {
      document.body.style.overflowX = "";
      document.body.style.overflowY = "";
      document.body.style.width = "";
      document.body.style.position = "";
      focusedElement?.focus();
      window.scrollTo(scrollPosition.x, scrollPosition.y);
    }


    return () => {
      restoreDocBodyScrolling(); // cleanup on unmount
    };
  }, []);

  return (
    <>
      <div
        className="backdrop"
        onClick={() => handleClose && handleClose()}
      />
      <div
        className={`pop-over-menu${className ? (` ${className}`) : ""}`}
        ref={selfRef}
      >
        <button
          className="pop-over-menu--close-button" type="button"
          onClick={() => handleClose && handleClose()}
        >
          X
        </button>
        {children}
      </div>
    </>
  );
}

最初发表于另一个相关的Stackoverflow问题:https://stackoverflow.com/a/69016517/14131330