JavaScript to achieve the perfect drag-and-drop effect

Source: Internet
Author: User

JavaScript implementation of the drag-and-drop effect, you can drag the picture on the screen to any place, the effect is smooth, click on the picture can also be expanded from the side of the picture details, very good photo album effect

The principle of dragging and dragging

1. Get the distance (the position of the mouse-odiv the outside margin)

2. Understanding when to use the OnMouseMove event

3. Judge whether the boundary is over

HTML code:


1 <div id= "Div1" ></div>

CSS code:


1 #div1 {Width:100px;height:100px;background:red;position:absolute}

JavaScript code:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 The

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