【问题标题】:body height to extend based on overlay's height根据叠加层高度扩展的身体高度
【发布时间】:2016-07-04 08:41:32
【问题描述】:

我正在尝试实现一个布局,其中背景(绿色)是窗口高度的 100%,如果有覆盖层超出折叠,则背景的高度应该扩展以适应更大的高度。

我在holder 中有Overlay 的原因是因为我正在使用 React 来显示身体顶部的叠加层,如果这很重要的话。

html,
body {
  height: 100%;
}

#holder {
  background: green;
  width: 100%;
  min-height: 100%;
  position: relative;
}

#logo {
  height: 50px;
  width: 100px;
  display: block;
  background: blue;
}

#overlay {
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  margin-top: -50px;
  min-height: 100%;
  z-index: 10000;
  position: absolute;
  display: block;
}

#information {
  height: 500px;
}
<div id='holder'>
  <div id='logo'></div>
  <div id='overlay'>
    <div id='information'>

    </div>
  </div>
</div>

https://jsfiddle.net/eu3hdw34/2/

【问题讨论】:

  • #holder{ min-height: 100vh } 怎么样?
  • 什么是 vh? overlay/information 的高度是可变的。
  • vh 让您获得 100% 的视口高度。

标签: html css reactjs


【解决方案1】:

这样的?

html, body{
  height: 100%;
}
#holder{
  background:green;
  width:100%;
  min-height:100%;
  position:relative;
}
#logo{
  height:50px;
  width:100px;
  display:block;
  background:blue;
  position: absolute;
  top: 0;
  z-index: 100;
}
#overlay{
  background: rgba(0,0,0,0.5);
  width: 100%;
  min-height: 100%;
  display: block;
  top: 0;
  position: relative;
  z-index: 1000;
}
<div id='holder'>
  <div id='logo'></div>
  <div id='overlay'>
    <div id='information'>
De standaard Lorem Ipsum passage, in gebruik sinds de 16e eeuw

"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."

Sectie 1.10.32 van "de Finibus Bonorum et Malorum", geschreven door Cicero in 45 v.Chr.

"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?"

1914 vertaling door H. Rackham

"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?"

Sectie 1.10.33 van "de Finibus Bonorum et Malorum", geschreven door Cicero in 45 v.Chr.

"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat."

1914 vertaling door H. Rackham

"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains."
    </div>
  </div>
</div>

【讨论】:

  • 您缺少information id,这是问题所在。基本上,如果信息容器比窗口​​高,则绿色背景保持 100% 高度,并且用户可以看到覆盖在底部延伸。我希望背景扩大高度以适应 information 容器的额外高度。
  • 嗯...让我看看这是否适用于我的情况。我很确定我尝试过类似的方法。
  • 所以你是说你总是有一个固定高度的div(在这种情况下是#information div)?如果您想将背景扩展到折叠之外,我很确定 vh(视口高度)也无济于事。
  • 不,不......所以上面的答案确实有效。事实上,我就是这样做的,但遇到了一个奇怪的问题,即在顶部有一个奇怪的 100px 填充来抵消information div。我刚刚发现有一个菜单设置为相对而不是绝对,这弄乱了信息的呈现。叠加层上的 VH 效果很好。
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