48 lines
1.1 KiB
HTML
48 lines
1.1 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 http-equiv="X-UA-Compatible" content="IE=edge">
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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)
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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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}
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.box {
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width: 3.75rem;
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height: 3.75rem;
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float: left;
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}
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.box_1 {
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background: red;
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}
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.box_2 {
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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 box_1"></div>
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<div class="box box_2"></div>
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</body>
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</html> |