我有一个场景，我有一个固定的页面标题，它应该是视口宽度的100％，一个更大的元素，大约5000px宽，并在标题下方滚动。
移动浏览器似乎有几个问题没有修复标题，而是显示一个更大的（比率计算??）标题，它在iOS上滚动得更慢，并且在滚动位置方面突然超过标题的宽度时跳转机器人。
使用100vw作为标题可以工作，但有时候标题会在某个断点处消失，而且似乎并没有真正固定定位。
基本上问题似乎是固定元素100％！=视口的100％，即320px，但计算出的宽度介于视口宽度和较大元素之间。
任何帮助都会受到大力赞赏！
简化的代码示例如下......
<!html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
<style>
* {
margin: 0;
padding: 0;
}
.a-div {
position: fixed;
width: 100%;
height: 100px;
z-index: 1;
background: dimgray;
border-left: 1px solid red;
border-right: 1px solid pink;
}
.parent {
width: 5000px;
overflow: hidden;
}
.another-div {
position: relative;
width: 1%;
height: 100vh;
float: left;
background: #5f9ea0;
}
.another-div:nth-child(even) {
background: #add8e6;
}
</style>
</head>
<body>
<div class="a-div"></div>
<div class="parent">
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
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<div class="another-div"></div>
<div class="another-div"></div>
<div class="another-div"></div>
</div>
</body>
</html>
答案 0 :(得分：2)
用户可扩展键的值应为是或否，而不是 1 或 0
e.g。
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
参考文献：Safari Supported Meta Tags， Chrome Revision 154568， Some guy on Github