twitter-bootstrap 为什么 h-100 不起作用？
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Why h-100 does not work?
提问by zero_coding
I have the following layout:
我有以下布局：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous">
<title>Bootstrap</title>
</head>
<body>
<div class="container bg-danger h-100">
<div class="bg-warning border p-1">Exotic</div>
<div class="bg-warning border p-1">Grooming</div>
<div class="bg-warning border p-1">Health</div>
<div class="bg-warning border p-1">Nutrition</div>
<div class="bg-warning border p-1">Pests</div>
<div class="bg-warning border p-1">Vaccinations</div>
</div><!-- container -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"></script>
</body>
</html>The question is, why the divcontainer is not 100 percent height?
问题是，为什么div容器不是 100% 的高度？
Thanks
谢谢
回答by vicnoob
As my knowledge, height 100% is the div has the height equal to its parent, but here there is no parent for it. If you want to make the div's height equal to your window height, I tried wrap it with a div height = 100vh. https://jsfiddle.net/goLfLykw/
据我所知，高度 100% 是 div 的高度等于其父级，但这里没有父级。如果你想让 div 的高度等于你的窗口高度，我试着用 div height = 100vh 包裹它。https://jsfiddle.net/goLfLykw/
<div style="height: 100vh">
<div class="container bg-danger h-100">
<div class="bg-warning border p-1">Exotic</div>
<div class="bg-warning border p-1">Grooming</div>
<div class="bg-warning border p-1">Health</div>
<div class="bg-warning border p-1">Nutrition</div>
<div class="bg-warning border p-1">Pests</div>
<div class="bg-warning border p-1">Vaccinations</div>
</div>
<!-- container -->
</div>
回答by Tomá? Hübelbauer
You should be able to set HTML and BODY heights to 100 % so that the divs parent is full of viewport height, then the div should stretch there. This is easy to achieve with flexbox:
您应该能够将 HTML 和 BODY 高度设置为 100%，以便divs 父级充满视口高度，然后 div 应该在那里伸展。这很容易用 flexbox 实现：
html { height: 100%; }
body { height: 100%; display: flex; }
body > div { flex: 1; }
This should stretch the div across the entire viewport.
这应该在整个视口中拉伸 div。
