要使用JavaScript和CSS创建可拖动的HTML元素,代码如下-
<!DOCTYPE html> <html> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .dragDiv { position: absolute; z-index: 9; text-align: center; border: 1px solid #d3d3d3; padding: 30px; cursor: move; z-index: 10; background-color: rgb(108, 24, 177); color: #fff; font-size: 20px; font-weight: 500; } </style> <body> <h1>Draggable DIV Element Example</h1> <h2>Click and drag the below element to move it around</h2> <div class="dragDiv"> This div can be moved around </div> <script> dragElement(document.querySelector(".dragDiv")); function dragElement(ele) { var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0; if (document.querySelector(ele.id + "header")) { document.getElementById( ele.id + "header" ).onmousedown = dragMouseDown; } else { ele.onmousedown = dragMouseDown; } function dragMouseDown(e) { e = e || window.event; e.preventDefault(); pos3 = e.clientX; pos4 = e.clientY; document.onmouseup = closeDragElement; document.onmousemove = elementDrag; } function elementDrag(e) { e = e || window.event; e.preventDefault(); pos1 = pos3 - e.clientX; pos2 = pos4 - e.clientY; pos3 = e.clientX; pos4 = e.clientY; ele.style.top = ele.offsetTop - pos2 + "px"; ele.style.left = ele.offsetLeft - pos1 + "px"; } function closeDragElement() { document.onmouseup = null; document.onmousemove = null; } } </script> </body> </html>
输出结果
上面的代码将产生以下输出-
通过拖动来移动div时-