58 lines
1.2 KiB
HTML
58 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>rem</title>
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<script>
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window.onload = function () {
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getRem(750, 100) //第一位参数和设计图一样大小
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};
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window.onresize = function () {
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getRem(750, 100)
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};
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function getRem(pwidth, prem) {
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var html = document.getElementsByTagName("html")[0];
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var oWidth = document.body.clientWidth || document.documentElement.clientWidth;
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html.style.fontSize = oWidth / pwidth * prem + "px";
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}
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</script>
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<style>
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body {
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margin: 0;
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padding: 0;
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}
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.box {
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float: left;
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}
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.box1 {
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width: 3.5rem;
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height: 3.5rem;
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background: blue;
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}
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.box2 {
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width: 2rem;
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height: 2rem;
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background: brown;
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}
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.box3 {
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width: 2rem;
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height: 2rem;
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background: yellow;
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}
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</style>
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</head>
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<body>
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<div class="box box1"></div>
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<div class="box box2"></div>
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<div class="box box3"></div>
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</body>
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</html> |