我正在学习引导程序4。我的页面左侧有导航栏。 链接指向同一页面中的段落。左侧导航栏始终保持可见状态。
问题是：
当浏览器窗口的高度为全屏，桌面模式时， 不能从左侧导航栏单击底部的两个链接（项目的链接：项目3-2和项目4-2）-也就是说，您不能将鼠标放在链接上以单击它。所有其他链接都可以正常工作。
手动将浏览器窗口的高度缩短后，此问题就消失了，我可以单击所有链接。
是什么原因导致全屏桌面模式出现问题？
我猜这是导致此类问题的原因-但我不确定。
.bd-example {
position: -webkit-sticky; /* is it this? */
position: sticky;
top: .5rem; height: calc(100vh - .5rem);
overflow-y: auto;
padding-top: .5rem;
padding-bottom: .5rem;
font-size: .875rem;
display: inline-block;
}
代码作为文档： page HTML and CSS code file
我将代码放在jsFiddle中： https://jsfiddle.net/ekareem/aq9Laaew/250605/但是，需要使结果页高到足以观察到该问题。
谢谢。
答案 0 :(得分：1)
这是因为您要滚动到的元素太短，而最后一个元素只能在单个屏幕上显示。
要解决此问题，您需要允许页面实际滚动到它们（将滚动到其的项目放在页面顶部）。
在下面的示例中，我对容器使用了“穷人的修补程序” -padding-bottom:100vh-这样您就可以看到它正常工作：
.row {
background: #f8f9fa;
margin-top: 20px;
}
.col {
border: solid 1px #6c757d;
padding: 10px;
}
.bd-example {
position: -webkit-sticky;
position: sticky;
top: .5rem; height: calc(100vh - .5rem);
overflow-y: auto;
padding-top: .5rem;
padding-bottom: .5rem;
font-size: .875rem;
display: inline-block; /* could cause a slider when short vitewport */
}
[data-target="#navbar-example3"] {
padding-bottom: 100vh;
}<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<div class="container">
<div class="row">
<div class="col">
1 of 2
</div>
<div class="col">
2 of 2
</div>
</div>
<div class="row">
<div class="col">
1 of 3
</div>
<div class="col">
2 of 3
</div>
<div class="col">
3 of 3
</div>
</div>
</div>
<body data-spy="scroll" data-target=".bd-example">
<div class="container">
<div class="row">
<div class="col-4">
<div class="bd-example">
<nav id="navbar-example3" class="navbar navbar-dark bg-light">
<nav class="nav nav-pills flex-column">
<a class="navbar-brand" href="#" style="color:black;">Test</a>
<a class="nav-link" href="#item-1">Item 1</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-1-1">Item 1-1</a>
<a class="nav-link ml-3 my-1" href="#item-1-2">Item 1-2</a>
</ul>
<a class="nav-link" href="#item-2">Item2</a>
<a class="nav-link" href="#item-3">Item3</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-3-1">Item 3-1</a>
<a class="nav-link ml-3 my-1" href="#item-3-2">Item 3-2</a>
</ul>
<a class="nav-link" href="#item-4">Item4</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-4-1">Item 4-1</a>
<a class="nav-link ml-3 my-1" href="#item-4-2">Item 4-2</a>
</ul>
</nav>
</nav>
</div>
</div>
<div class="col-8">
<div data-spy="scroll" data-target="#navbar-example3" data-offset="300">
<h4 id="item-1">Item 1</h4>
<p>Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id
magna ullamco eu. Do aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore.
Fugiat laborum incididunt tempor eu consequat enim dolore proident. Qui laborum do non
excepteur nulla magna eiusmod consectetur in. Aliqua et aliqua officia quis et incididunt voluptate non anim
reprehenderit adipisicing dolore ut consequat deserunt mollit dolore. Aliquip nulla enim veniam
non fugiat id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.
</p>
<h5 id="item-1-1">Item 1-1</h5>
<p>Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat
elit qui et. Aliquip labore ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum
excepteur irure consequat id quis ea. Sit proident ullamco aute magna pariatur nostrud labore.
Reprehenderit aliqua commodo eiusmod aliquip est do duis amet proident magna consectetur
consequat eu commodo fugiat non quis. Enim aliquip exercitation ullamco adipisicing voluptate
excepteur minim exercitation minim minim commodo adipisicing exercitation officia nisi adipisicing. Anim
id duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.
</p>
<h5 id="item-1-2">Item 2-2</h5>
<p>Cillum nisi deserunt magna eiusmod qui eiusmod velit voluptate pariatur laborum sunt enim. Irure
laboris mollit consequat incididunt sint et culpa culpa incididunt adipisicing magna magna
occaecat. Nulla ipsum cillum eiusmod sint elit excepteur ea labore enim consectetur in labore
anim. Proident ullamco ipsum esse elit ut Lorem eiusmod dolor et eiusmod. Anim occaecat nulla
in non consequat eiusmod velit incididunt.
</p>
<h4 id="item-2">Item 2</h4>
<p>Quis magna Lorem anim amet ipsum do mollit sit cillum voluptate ex nulla tempor. Laborum
consequat non elit enim exercitation cillum aliqua consequat id aliqua. Esse ex consectetur
mollit
voluptate est in duis laboris ad sit ipsum anim Lorem. Incididunt veniam velit elit elit veniam
Lorem
aliqua quis ullamco deserunt sit enim elit aliqua esse irure. Laborum nisi sit est tempor
laborum
mollit labore officia laborum excepteur commodo non commodo dolor excepteur commodo. Ipsum
fugiat ex
est consectetur ipsum commodo tempor sunt in proident.
</p>
<h4 id="item-3">Item 3</h4>
<p>Quis anim sit do amet fugiat dolor velit sit ea ea do reprehenderit culpa duis. Nostrud aliqua
ipsum fugiat minim proident occaecat excepteur aliquip culpa aute tempor reprehenderit.
Deserunt
tempor mollit elit ex pariatur dolore velit fugiat mollit culpa irure ullamco est ex ullamco
excepteur.
</p>
<h5 id="item-3-1">Item 3-1</h5>
<p>Deserunt quis elit Lorem eiusmod amet enim enim amet minim Lorem proident nostrud. Ea id dolore
anim exercitation aute fugiat labore voluptate cillum do laboris labore. Ex velit exercitation nisi
enim labore reprehenderit labore nostrud ut ut. Esse officia sunt duis aliquip ullamco tempor
eiusmod deserunt irure nostrud irure. Ullamco proident veniam laboris ea consectetur magna sunt ex
exercitation aliquip minim enim culpa occaecat exercitation. Est tempor excepteur aliquip
laborum consequat do deserunt laborum esse eiusmod irure proident ipsum esse qui.
</p>
<h5 id="item-3-2">Item 3-2</h5>
<p>Labore sit culpa commodo elit adipisicing sit aliquip elit proident voluptate minim mollit
nostrud aute reprehenderit do. Mollit excepteur eu Lorem ipsum anim commodo sint labore Lorem in
exercitation velit incididunt. Occaecat consectetur nisi in occaecat proident minim enim sunt
reprehenderit exercitation cupidatat et do officia. Aliquip consequat ad labore labore mollit
ut amet. Sit pariatur tempor proident in veniam culpa aliqua excepteur elit magna fugiat eiusmod amet officia.
</p>
<h4 id="item-4">Item 4</h4>
<p>Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id
magna ullamco eu. Do aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore.
Fugiat laborum incididunt tempor eu consequat enim dolore proident. Qui laborum do non
excepteur nulla magna eiusmod consectetur in. Aliqua et aliqua officia quis et incididunt voluptate non anim
reprehenderit adipisicing dolore ut consequat deserunt mollit dolore. Aliquip nulla enim veniam
non fugiat id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.
</p>
<h5 id="item-4-1">Item 4-1</h5>
<p>Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat
elit qui et. Aliquip labore ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum
excepteur irure consequat id quis ea. Sit proident ullamco aute magna pariatur nostrud labore.
Reprehenderit aliqua commodo eiusmod aliquip est do duis amet proident magna consectetur
consequat eu commodo fugiat non quis. Enim aliquip exercitation ullamco adipisicing voluptate
excepteur minim exercitation minim minim commodo adipisicing exercitation officia nisi adipisicing. Anim
ix duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.
</p>
<h5 id="item-4-2">Item 4-2</h5>
<p>Cillum nisi deserunt magna eiusmod qui eiusmod velit voluptate pariatur laborum sunt enim. Irure
laboris mollit consequat incididunt sint et culpa culpa incididunt adipisicing magna magna
occaecat. Nulla ipsum cillum eiusmod sint elit excepteur ea labore enim consectetur in labore
anim. Proident ullamco ipsum esse elit ut Lorem eiusmod dolor et eiusmod. Anim occaecat nulla in non
consequat eiusmod velit incididunt.
</p>
</div>
</div>
</div>
</div>
其他更详尽的选项包括：
100vh减去最后一个元素的高度（也许是个不错的，较高的，页脚的高度？）-如果您别无选择，只需将<div>与（min-height: 100vh; background: url('link-to-nice-picture' no-repeat 50% 50% /cover）放在一起，并在其底部居中显示“谢谢” 精美印刷的消息。示例：
.row {
background: #f8f9fa;
margin-top: 20px;
}
.col {
border: solid 1px #6c757d;
padding: 10px;
}
.bd-example {
position: -webkit-sticky;
position: sticky;
top: .5rem;
height: calc(100vh - .5rem);
overflow-y: auto;
padding-top: .5rem;
padding-bottom: .5rem;
font-size: .875rem;
display: inline-block;
/* could cause a slider when short vitewport */
}
.bottom-message {
background: url(https://static.boredpanda.com/blog/wp-content/uploads/2014/08/cat-looking-at-you-black-and-white-photography-1.jpg) no-repeat bottom center /cover;
min-height: 100vh;
display: flex;
align-items: flex-end;
justify-content: center;
}
.bottom-message em{
font-family: initial;
font-size: 1.5rem;
}<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<body data-spy="scroll" data-target=".bd-example">
<div class="container">
<div class="row">
<div class="col">
1 of 2
</div>
<div class="col">
2 of 2
</div>
</div>
<div class="row">
<div class="col">
1 of 3
</div>
<div class="col">
2 of 3
</div>
<div class="col">
3 of 3
</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-4">
<div class="bd-example">
<nav id="navbar-example3" class="navbar navbar-dark bg-light">
<nav class="nav nav-pills flex-column">
<a class="navbar-brand" href="#" style="color:black;">Test</a>
<a class="nav-link" href="#item-1">Item 1</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-1-1">Item 1-1</a>
<a class="nav-link ml-3 my-1" href="#item-1-2">Item 1-2</a>
</ul>
<a class="nav-link" href="#item-2">Item2</a>
<a class="nav-link" href="#item-3">Item3</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-3-1">Item 3-1</a>
<a class="nav-link ml-3 my-1" href="#item-3-2">Item 3-2</a>
</ul>
<a class="nav-link" href="#item-4">Item4</a>
<ul class="nav nav-pills flex-column">
<a class="nav-link ml-3 my-1" href="#item-4-1">Item 4-1</a>
<a class="nav-link ml-3 my-1" href="#item-4-2">Item 4-2</a>
</ul>
</nav>
</nav>
</div>
</div>
<div class="col-8">
<div data-spy="scroll" data-target="#navbar-example3" data-offset="300">
<h4 id="item-1">Item 1</h4>
<p>Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id magna ullamco eu. Do aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore. Fugiat laborum incididunt tempor eu consequat enim dolore
proident. Qui laborum do non excepteur nulla magna eiusmod consectetur in. Aliqua et aliqua officia quis et incididunt voluptate non anim reprehenderit adipisicing dolore ut consequat deserunt mollit dolore. Aliquip nulla enim veniam non fugiat
id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.
</p>
<h5 id="item-1-1">Item 1-1</h5>
<p>Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat elit qui et. Aliquip labore ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum excepteur irure consequat id quis ea. Sit proident ullamco
aute magna pariatur nostrud labore. Reprehenderit aliqua commodo eiusmod aliquip est do duis amet proident magna consectetur consequat eu commodo fugiat non quis. Enim aliquip exercitation ullamco adipisicing voluptate excepteur minim exercitation
minim minim commodo adipisicing exercitation officia nisi adipisicing. Anim id duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.
</p>
<h5 id="item-1-2">Item 2-2</h5>
<p>Cillum nisi deserunt magna eiusmod qui eiusmod velit voluptate pariatur laborum sunt enim. Irure laboris mollit consequat incididunt sint et culpa culpa incididunt adipisicing magna magna occaecat. Nulla ipsum cillum eiusmod sint elit excepteur
ea labore enim consectetur in labore anim. Proident ullamco ipsum esse elit ut Lorem eiusmod dolor et eiusmod. Anim occaecat nulla in non consequat eiusmod velit incididunt.
</p>
<h4 id="item-2">Item 2</h4>
<p>Quis magna Lorem anim amet ipsum do mollit sit cillum voluptate ex nulla tempor. Laborum consequat non elit enim exercitation cillum aliqua consequat id aliqua. Esse ex consectetur mollit voluptate est in duis laboris ad sit ipsum anim Lorem.
Incididunt veniam velit elit elit veniam Lorem aliqua quis ullamco deserunt sit enim elit aliqua esse irure. Laborum nisi sit est tempor laborum mollit labore officia laborum excepteur commodo non commodo dolor excepteur commodo. Ipsum fugiat
ex est consectetur ipsum commodo tempor sunt in proident.
</p>
<h4 id="item-3">Item 3</h4>
<p>Quis anim sit do amet fugiat dolor velit sit ea ea do reprehenderit culpa duis. Nostrud aliqua ipsum fugiat minim proident occaecat excepteur aliquip culpa aute tempor reprehenderit. Deserunt tempor mollit elit ex pariatur dolore velit fugiat
mollit culpa irure ullamco est ex ullamco excepteur.
</p>
<h5 id="item-3-1">Item 3-1</h5>
<p>Deserunt quis elit Lorem eiusmod amet enim enim amet minim Lorem proident nostrud. Ea id dolore anim exercitation aute fugiat labore voluptate cillum do laboris labore. Ex velit exercitation nisi enim labore reprehenderit labore nostrud ut ut.
Esse officia sunt duis aliquip ullamco tempor eiusmod deserunt irure nostrud irure. Ullamco proident veniam laboris ea consectetur magna sunt ex exercitation aliquip minim enim culpa occaecat exercitation. Est tempor excepteur aliquip laborum
consequat do deserunt laborum esse eiusmod irure proident ipsum esse qui.
</p>
<h5 id="item-3-2">Item 3-2</h5>
<p>Labore sit culpa commodo elit adipisicing sit aliquip elit proident voluptate minim mollit nostrud aute reprehenderit do. Mollit excepteur eu Lorem ipsum anim commodo sint labore Lorem in exercitation velit incididunt. Occaecat consectetur nisi
in occaecat proident minim enim sunt reprehenderit exercitation cupidatat et do officia. Aliquip consequat ad labore labore mollit ut amet. Sit pariatur tempor proident in veniam culpa aliqua excepteur elit magna fugiat eiusmod amet officia.
</p>
<h4 id="item-4">Item 4</h4>
<p>Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id magna ullamco eu. Do aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore. Fugiat laborum incididunt tempor eu consequat enim dolore
proident. Qui laborum do non excepteur nulla magna eiusmod consectetur in. Aliqua et aliqua officia quis et incididunt voluptate non anim reprehenderit adipisicing dolore ut consequat deserunt mollit dolore. Aliquip nulla enim veniam non fugiat
id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.
</p>
<h5 id="item-4-1">Item 4-1</h5>
<p>Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat elit qui et. Aliquip labore ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum excepteur irure consequat id quis ea. Sit proident ullamco
aute magna pariatur nostrud labore. Reprehenderit aliqua commodo eiusmod aliquip est do duis amet proident magna consectetur consequat eu commodo fugiat non quis. Enim aliquip exercitation ullamco adipisicing voluptate excepteur minim exercitation
minim minim commodo adipisicing exercitation officia nisi adipisicing. Anim ix duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.
</p>
<h5 id="item-4-2">Item 4-2</h5>
<p>Cillum nisi deserunt magna eiusmod qui eiusmod velit voluptate pariatur laborum sunt enim. Irure laboris mollit consequat incididunt sint et culpa culpa incididunt adipisicing magna magna occaecat. Nulla ipsum cillum eiusmod sint elit excepteur
ea labore enim consectetur in labore anim. Proident ullamco ipsum esse elit ut Lorem eiusmod dolor et eiusmod. Anim occaecat nulla in non consequat eiusmod velit incididunt.
</p>
</div>
</div>
</div>
</div>
<div class="bottom-message"><em>Say cheese...</em></div>
</body>
https://jsfiddle.net/websiter/uodnhqyp/
100vh，通过图形丰富您的应用程序，而图形是引人注目的现代设计的基础。