我的网站上有一个菜单栏,我正在尝试添加一个搜索字段。它已经在网站上有一段时间了,但还没有做任何事情。这是它的样子:
body {
margin: 14px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.css">
<script src="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.js"></script>
<div class="ui inverted menu">
<a href="/" class="active item">
Home
</a>
<div class="right item">
<div class="ui inverted transparent input">
<input type="text" name="pageName" placeholder="Navigate to...">
</div>
<button type="submit" class="ui black button">Go</button> </div>
</div>
我终于开始着手让它发挥作用了,所以我在搜索输入和按钮周围添加了一个表单元素:
body {
margin: 14px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.css">
<script src="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.js"></script>
<div class="ui inverted menu">
<a href="/" class="active item">
Home
</a>
<div class="right item">
<form id="navigateForm" action="/Page/NavigateForm" method="post">
<div class="ui inverted transparent input">
<input type="text" name="pageName" placeholder="Navigate to...">
</div>
<button type="submit" class="ui black button">Go</button>
</form>
</div>
</div>
但是有了表单元素,菜单栏比没有它的要高。为什么会这样,我该如何解决?
最佳答案
不是添加表单元素,而是将一个 div
转换为 form
。问题是由于在某些 CSS 规则中使用了 >
选择器,如果您引入额外的元素,这些规则将会中断,因此该规则将不再适用,您将获得新的结果。
例子:
body {
margin: 14px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.css">
<script src="https://cdn.jsdelivr.net/npm/fomantic-ui@2.7.5/dist/semantic.min.js"></script>
<div class="ui inverted menu">
<a href="/" class="active item">
Home
</a>
<form id="navigateForm" class="right item" action="/Page/NavigateForm" method="post">
<div class="ui inverted transparent input">
<input type="text" name="pageName" placeholder="Navigate to...">
</div>
<button type="submit" class="ui black button">Go</button>
</form>
</div>
关于html - 为什么表单元素使我的 div 比没有它时占用更多空间?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56695500/