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<title>rem js计算方案改成css计算 | janceChun</title>
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rem js计算方案改成css计算
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<h3 id="对比"><a href="#对比" class="headerlink" title="对比"></a>对比</h3><ul>
<li>@yy/ho-flexible<ul>
<li><p>触发多次回流 </p>
<p><img src="https://user-images.githubusercontent.com/4457572/177524648-48aedc93-e933-431c-9de0-c70370d6aada.png" alt="image"></p>
<img width="1276" alt="image" src="https://user-images.githubusercontent.com/4457572/177522006-040917d1-539c-4975-abdd-cd96209f2c9f.png">
<p> getComputedStyle.width （1rem）<br> style.fontSize </p>
</li>
<li><p>监听resize，pageshow事件变化重置大小会出现抖动</p>
</li>
</ul>
</li>
</ul>
<span id="more"></span>
<ul>
<li>calc<ul>
<li><p>无回流事件</p>
</li>
<li><p>css计算变化无抖动现象</p>
</li>
<li><p>calc 兼容 <a target="_blank" rel="noopener" href="https://developer.mozilla.org/zh-CN/docs/Web/CSS/calc">Android WebView 37</a>及以上， <a target="_blank" rel="noopener" href="https://developer.android.com/about/versions/lollipop?hl=zh-cn">Android 5.0</a> 的初始版本提供了一版基于 Chromium M37 版本的 Chromium for WebView<br>vw单位兼容<a target="_blank" rel="noopener" href="https://caniuse.com/?search=vw">Android 4.4</a></p>
</li>
<li><p>无需引入Js，减轻离线包大小（压缩后1kb）</p>
</li>
</ul>
</li>
</ul>
<h3 id="demo-链接"><a href="#demo-链接" class="headerlink" title="demo 链接"></a>demo 链接</h3><ul>
<li><p>使用 @yy/ho-flexible<br><a target="_blank" rel="noopener" href="https://test.ihago.net/a/live-pk-rank-2022/index.html">https://test.ihago.net/a/live-pk-rank-2022/index.html</a></p>
</li>
<li><p>使用 calc<br><a target="_blank" rel="noopener" href="https://test-next-1.ihago.net/a/live-pk-rank-2022/index.html">https://test-next-1.ihago.net/a/live-pk-rank-2022/index.html</a></p>
</li>
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<p> 参考链接🔗<br> <a target="_blank" rel="noopener" href="https://www.zhangxinxu.com/wordpress/2016/08/vw-viewport-responsive-layout-typography/">基于vw等viewport视区单位配合rem响应式排版和布局</a></p>
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