H5 ios端底部安全距离CSS

html 头部添加

<meta name="viewport" content="width=device-width, initial-scale=1.0,minimum-scale=1.0, maximum-scale=1.0, viewport-fit=cover">

css添加：

padding-bottom: 0px;
padding-bottom: constant(safe-area-inset-bottom);
padding-bottom: env(safe-area-inset-bottom);

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结束