我不允许将Jquery / Javascript添加到此站点，因此我一直在寻找任何方法来执行“返回顶部”按钮，并将其转换为仅使用CSS / HTML的顶部....我认为这是可能的，但要检查是否有人遇到过解决方案。
答案 0 :(得分：11)
它不会是一个平滑的滚动，但你可以使用achor标签链接到页面的任何部分。以下是W3学校的一个例子。
<!DOCTYPE html>
<html>
<body>
<h2><a id="top">There is a link at the bottom of the page!</a></h2>
<p>In my younger and more vulnerable years my father gave me some advice that I've been turning over in my mind ever since.</p>
<p>"Whenever you feel like criticizing any one," he told me, "just remember that all the people in this world haven't had the advantages that you've had."</p>
<p>He didn't say any more, but we've always been unusually communicative in a reserved way, and I understood that he meant a great deal more than that. In consequence, I'm inclined to reserve all judgments, a habit that has opened up many curious natures to me and also made me the victim of not a few veteran bores. The abnormal mind is quick to detect and attach itself to this quality when it appears in a normal person, and so it came about that in college I was unjustly accused of being a politician, because I was privy to the secret griefs of wild, unknown men. Most of the confidences were unsought-frequently I have feigned sleep, preoccupation, or a hostile levity when I realized by some unmistakable sign that an intimate revelation was quivering on the horizon; for the intimate revelations of young men, or at least the terms in which they express them, are usually plagiaristic and marred by obvious suppressions. Reserving judgments is a matter of infinite hope. I am still a little afraid of missing something if I forget that, as my father snobbishly suggested, and I snobbishly repeat, a sense of the fundamental decencies is parcelled out unequally at birth.</p>
<p>And, after boasting this way of my tolerance, I come to the admission that it has a limit. Conduct may be founded on the hard rock or the wet marshes, but after a certain point I don't care what it's founded on. When I came back from the East last autumn I felt that I wanted the world to be in uniform and at a sort of moral attention forever; I wanted no more riotous excursions with privileged glimpses into the human heart. Only Gatsby, the man who gives his name to this book, was exempt from my reaction-Gatsby, who represented everything for which I have an unaffected scorn. If personality is an unbroken series of successful gestures, then there was something gorgeous about him, some heightened sensitivity to the promises of life, as if he were related to one of those intricate machines that register earthquakes ten thousand miles away. This responsiveness had nothing to do with that flabby impressionability which is dignified under the name of the "creative temperament"-it was an extraordinary gift for hope, a romantic readiness such as I have never found in any other person and which it is not likely I shall ever find again. No-Gatsby turned out all right at the end; it is what preyed on Gatsby, what foul dust floated in the wake of his dreams that temporarily closed out my interest in the abortive sorrows and short-winded elations of men.</p>
<a href="#top">Go to top</a>
</body>
</html>
基本上href使用css选择器来决定转到哪个锚</ p>
更新：所以我在smooth scrolling上发现了一个有趣的链接，我想我会在这个问题上发帖。
答案 1 :(得分：5)
据我所知，没有办法只使用CSS进行平滑的页面转换。正如aaronman所述，您可以使用id的HTML属性来帮助跳转到页面上的不同位置。你给元素id，可以是你想要的任何东西
<h1 id="whatever">Jump to me</div>
然后在页面的某个位置，您可以使用锚标记来跳转到此。
<a href="#whatever">Jump to "Jump to me"</a>
这种方式非常类似于在CSS中定位元素。您使用ID定位它，href将带您到那里。这对于目录等项目很有帮助。如果您正在制作诸如目录之类的内容并且想要显示已跳转到某个部分，则可以使用:target伪类来完成此操作。 Here是一个非常基本的例子。
如果没有要跳转的元素，您可以通过a href #来实现此目的。这将直接跳到页面顶部。这几乎就像页面的<html> id #一样。
答案 2 :(得分：1)
要通过CSS滚动到页面顶部，您必须添加某种触发器来更改CSS。也就是AFAIK，只能通过html内联JavaScript触发器或javascript中的EventListeners实现。
然而，您可以通过锚点（href=#the_id_of_an_element）的设置跳转到页面上的某个点，但这不是平滑的，而是瞬间的。
现在，我确实设法让一些平滑滚动到页面顶部，或者更确切地说是元素的开头，但是只使用CSS，这会产生一些不安的副作用。但是，我会分享这些代码，看看它是否可以帮助任何人一开始，或者任何其他问题。
/*
KNOWN ISSUES
- requires constant user input.
Either through hover or buttonpress
-> If an element would be triggered, they cannot be untriggered. CSS is not made for this.
- moves the page
Well, what did you expect? CSS visualises the page. You can only move
the page through the CSS by editing visual content and making the page smaller,
basically forcing the client to move the user.
-> this also means that elements below the element are shown in the view
-> it is VERY visible, especially if you look at the scrollbar
- has a delay depending on where the user is at
The animation has to reach the position of the user, basically.
At least it works on IE?
But honestly, just use javascript to scroll to. It's literally an one-liner
*/
/* Transition types. Fairly universal available in browsers*/
.smooth-transition {
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-ms-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
}
.slow-transition {
-webkit-transition: all 1.5s ease;
-moz-transition: all 1.5s ease;
-ms-transition: all 1.5s ease;
-o-transition: all 1.5s ease;
transition: all 1.5s ease;
}
/* End of transition types */
.bottom {
position: fixed;
/*Position wherever, just know that you can set sizes using these*/
bottom: 0px;
height: 40px;
left: 0px;
right: 0px;
z-index: 10;
}
/*
Settings for the transitions
On active (which is click), the animation makes sure the page is made smaller, so
the top is shown again. This also causes the user to be moved upwards
After that animation, the page is restored in size.
*/
#move:active ~ .mover,
#move:focus:hover ~ .mover {
height: 0px;
}
#move:after {
content: "Back to top";
}
#move:focus:after {
content: "Hover to go up";
}
/*
The element that holds all the data
It's required for this element to also be at the end of the page,
otherwise the user will be moved upwards, but also with the end
of the page in sight. (This can be tweaked with the min-height
settings though. Height - height of whatever is beneath it, but
the user will still see the other elements)
*/
.mover {
/*
Min-height here is the amount of spacing between the element and
the top of the HTML page. In most cases, this is 100%, but if the
element is contained, then this min-height trick might not work
Just make sure that the min-height amount is the same as the visual
page size, and NOT its contents or its parent.
*/
min-height: 100%;
/*
Set to your div height. Unfortunately, animations from auto to
0px are not supported (yet?), and there's no real good trick
as a placeholder for this one. You could mess around with
max-height, but remember that this can cause a delay in animation
and creates differences in speed that are hard to tweak or measure.
*/
height: 1400px;
/*
In order to move the page, you'll have to suppress the content
that will be shown outside of the element. Ergo, hide the overflow.
*/
overflow: hidden;
}
/* To make the example element look pretty*/
#move:hover {
color: whitesmoke;
background-color: rgb(30,30,30);
}
#move {
background-color: rgb(50,50,50);
border-radius: 2px;
text-align: center;
line-height: 40px;
color: lightslategrey;
text-decoration: none;
}
/*
End of pretty CSS
*/<link rel="stylesheet" href="test.css">
<html>
<h1>Welcome at the top</h1>
<a id="move" class="bottom" ></a>
<div class="mover slow-transition">
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Ne est recusabo democritum, dicat melius noluisse ex sea. Mea ad posse atomorum, in sed facilis concludaturque. No veri sonet mel. Ornatus delenit an qui, usu te saepe utinam vivendum, idque urbanitas pro ex. Quo ludus erroribus ea. Ea saperet atomorum honestatis sit. Eu essent impedit deseruisse ius, ex dicit mandamus his, eu mel prompta qualisque necessitatibus.
Pri solet probatus at. Quo sint alienum ne. Reque malis sonet id mel, has enim mundi alienum.</p>
</div>
</html>
请务必阅读我在CSS中添加的评论，以便您了解问题是什么以及文件中的所有内容。虽然，我相当确定你几乎会立刻注意到一个令人讨厌的副作用。