I've created a page that scales large images to fit the window, however it does not allow the user to zoom once the image is loaded and scaled to fit. I want the initial view size to be as realized by the css as shown below, but thereafter I want the user to be able to zoom (or pinch-zoom on mobile/touch-screen devices), as well as Ctrl+0 to return to the initial view size. How can I accomplish this? Here's the complete code:
<!DOCTYPE html>
<html>
<head>
<style>
img {
position: fixed;
max-width: 100%;
max-height: 100%;
top:0;
left:0;
bottom:0;
right:0;
margin: auto;
}
</style>
</head>
<body>
<img src="LARGE_IMAGE.jpg">
</body>
</html>
您应该在视口上设置宽度。无论如何，设备宽度之后不会改变。
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