<div class="menu" id="fd">
	<div class="box" style="display:none;">
		<a class="t1" href="https://jy.tp.yuanmeng.life/"></a>
		<a class="t2" href="https://jy.tp.yuanmeng.life/"></a>
		<a class="t3" href="https://jy.tp.yuanmeng.life/"></a>
		<a class="t4" href="https://jy.tp.yuanmeng.life/"></a>
		<a class="t5" href="https://jy.tp.yuanmeng.life/"></a>
		<a class="t6" href="https://jy.tp.yuanmeng.life/"></a>
	</div>
</div>

script.js

//浮动导航条展开与收缩
$(function () {
    var box = $('.menu .box');
    $('.menu').hover(function () {
        box.stop().show(300);
    }, function () {
        box.stop().hide(150);
    })
})

//浮动导航条拖动
$(function () {
    var box = document.getElementById('fd');
    box.onmousedown = function (event) {
        var e = event || window.event,
  t = e.target || e.srcElement,
        //鼠标按下时的坐标x1,y1
  x1 = e.clientX,
  y1 = e.clientY,
        //鼠标按下时的左右偏移量
  dragLeft = this.offsetLeft,
  dragTop = this.offsetTop;
        document.onmousemove = function (event) {
            var e = event || window.event,
  t = e.target || e.srcElement,
            //鼠标移动时的动态坐标
  x2 = e.clientX,
  y2 = e.clientY,
            //鼠标移动时的坐标的变化量
  x = x2 - x1,
  y = y2 - y1;
            box.style.left = (dragLeft + x) + 'px';
            box.style.top = (dragTop + y) + 'px';
        }
        document.onmouseup = function () {
            this.onmousemove = null;
        }
    }
})
/* 代码整理：智慧小屋jy.tp.yuanmeng.life */