我正在尝试创建自己的响应式导航栏,有人可以解释为什么会发生这种情况,为什么我的导航消失了。当我把它调整到一定的大小它就消失了,但令我困惑的是溢出隐藏的属性,因为有它它工作正常,我不知道为什么...有人可以解释这个给我这里是代码
.navbar {
background-color: #333;
overflow: hidden;
}
.navbar a {
display: block;
float: left;
font-size: 17px;
color: #FFFFFF;
text-decoration: none;
font-size: 16px;
padding: 15px;
}
.icon {
width: 30px;
height: 4px;
margin: 6px 0px;
background-color: #FFFFFF;
}
.navbar a.toggle {
display: none;
}
@media screen and (max-width: 500px) {
.navbar a {
display: none;
}
.navbar a.toggle {
float: right;
display: block;
padding: 5px;
}
}

<div class="navbar">
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Contact</a>
<a href="javascript:void(0)" class="toggle" onclick="myFunc()">
<div class="icon"></div>
<div class="icon"></div>
<div class="icon"></div>
</a>
</div>
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答案 0 :(得分:1)
您没有提到高度添加高度将解决您的问题。
<div class="navbar">
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Contact</a>
<a href="javascript:void(0)" class="toggle" onclick="myFunc()">
<div class="icon"></div>
<div class="icon"></div>
<div class="icon"></div>
</a>
</div>
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PackageManager packageManager = this.getPackageManager();
int permission = packageManager.checkPermission("android.permission.CAMERA", "your packageName");
if (PackageManager.PERMISSION_GRANTED == permission) {
// you can do something
} else {
// request permission
}
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答案 1 :(得分:0)
使用flexbox的替代方案
scala> spark.read.option("multiLine", true).json("jsonFile.json").printSchema
root
|-- lang: array (nullable = true)
| |-- element: array (containsNull = true)
| | |-- element: string (containsNull = true)
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.navbar {
background-color: #333;
display: flex;
}
.navbar a {
color: #FFFFFF;
text-decoration: none;
font-size: 16px;
padding: 15px;
}
.icon {
width: 30px;
height: 4px;
margin: 6px 0px;
background-color: #FFFFFF;
}
.navbar a.toggle {
display: none;
}
@media screen and (max-width: 500px) {
.navbar a {
display: none;
}
.navbar a.toggle {
margin-left: auto;
display: block;
padding: 5px;
}
}
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