如何解决有没有办法让html按钮连接到顶部
我一直在尝试将 CSS 按钮连接到顶部，但我什么也想不通 我把 w3 学校的代码写对了 here
要求的结果： 
解决方法
是的，你可以，所以首先你需要删除它
[+] Building 5.8s (5/5) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 247B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 34B 0.0s
=> [internal] load metadata for docker.io/library/python:3.8.10-slim-buster 2.6s
=> CACHED [1/2] FROM docker.io/library/python:3.8.10-slim-buster@sha256:c9dc8cd1171771e7f0def12be61d7bb340480e73b4e78acf3464ed0c3347dabd 0.0s
=> ERROR [2/2] RUN apt-get update && apt-get install --no-install-recommends -y build-essential libpq-dev 3.1s
------
> [2/2] RUN apt-get update && apt-get install --no-install-recommends -y build-essential libpq-dev:
#5 0.751 Get:1 http://deb.debian.org/debian buster InRelease [121 kB]
#5 0.751 Get:2 http://security.debian.org/debian-security buster/updates InRelease [65.4 kB]
#5 0.967 Get:3 http://deb.debian.org/debian buster-updates InRelease [51.9 kB]
#5 1.155 Get:4 http://deb.debian.org/debian buster/main amd64 Packages [7907 kB]
#5 1.204 Get:5 http://security.debian.org/debian-security buster/updates/main amd64 Packages [290 kB]
#5 2.833 Err:4 http://deb.debian.org/debian buster/main amd64 Packages
#5 2.833 Hash Sum mismatch
#5 2.833 Hashes of expected file:
#5 2.833 - Filesize:7906864 [weak]
#5 2.833 - SHA256:935deda18d5bdc25fb1813d0ec99b6e0e32a084b203e518af0cf7dc79ee8ebda
#5 2.833 - MD5Sum:ba791e511a2a4b6523ac06f404e32f42 [weak]
#5 2.833 Hashes of received file:
#5 2.833 - SHA256:3dbff74a7005b0214ed17ad72a4724cb91919d8d0221b5297f98f6153606bcaa
#5 2.833 - MD5Sum:f24d4da07e9d1e5bccd9d324cb36dd20 [weak]
#5 2.833 - Filesize:7906864 [weak]
#5 2.833 Last modification reported: Sat,27 Mar 2021 09:33:56 +0000
#5 2.833 Release file created at: Sat,27 Mar 2021 09:55:13 +0000
#5 3.000 Get:6 http://deb.debian.org/debian buster-updates/main amd64 Packages [10.9 kB]
#5 3.020 Fetched 8447 kB in 3s (3163 kB/s)
#5 3.020 Reading package lists...
#5 3.053 E: Failed to fetch http://deb.debian.org/debian/dists/buster/main/binary-amd64/by-hash/SHA256/935deda18d5bdc25fb1813d0ec99b6e0e32a084b203e518af0cf7dc79ee8ebda Hash Sum mismatch
#5 3.053 Hashes of expected file:
#5 3.053 - Filesize:7906864 [weak]
#5 3.053 - SHA256:935deda18d5bdc25fb1813d0ec99b6e0e32a084b203e518af0cf7dc79ee8ebda
#5 3.053 - MD5Sum:ba791e511a2a4b6523ac06f404e32f42 [weak]
#5 3.053 Hashes of received file:
#5 3.053 - SHA256:3dbff74a7005b0214ed17ad72a4724cb91919d8d0221b5297f98f6153606bcaa
#5 3.053 - MD5Sum:f24d4da07e9d1e5bccd9d324cb36dd20 [weak]
#5 3.053 - Filesize:7906864 [weak]
#5 3.053 Last modification reported: Sat,27 Mar 2021 09:33:56 +0000
#5 3.053 Release file created at: Sat,27 Mar 2021 09:55:13 +0000
#5 3.053 E: Some index files failed to download. They have been ignored,or old ones used instead.
------
executor failed running [/bin/sh -c apt-get update && apt-get install --no-install-recommends -y build-essential libpq-dev]: exit code: 100
比你添加这个
<div class="btn-group">
<button class="notbutton">no text here ToTaLy No TeXt YAYAYAYAYAYAYAYA</button>
</div>
并且您还从 .btn-group {
top:0;
position: absolute;
width: 100%;
background-color: #282a35;
border-bottom: 8px solid #303740;
}
.btn-group .button比你基本上有以下几点：
border-bottom: 4px solid #303740;
问题不在于您的代码。问题是该示例与您遇到的问题相同。如果在全页视图中打开代码，您会看到 notbutton 元素将移至顶行。如果缩小浏览器窗口，notbutton 元素有时会跳到下一行。
这是一个使用包装器 <nav> 元素和 flexbox 用于 .btn-group 元素的解决方案。
<!DOCTYPE html>
<html>
<head>
<style>
p,h1,h2,h3,h4,h5,h6 {
color: #ffffff;
}
.btn-group .button {
background-color: #282a35;
/* Dark */
color: #ffffff;
padding: 15px 32px;
text-align: center;
text-decoration: none;
font-size: 16px;
cursor: pointer;
border: none;
border-bottom: 4px solid #303740;
}
.btn-group .button:hover {
background-color: #000000;
}
.btn-group .notbutton {
background-color: #282a35;
/* Dark */
color: #282a35;
padding: 0; /* Remove padding from .notbutton */
text-align: center;
text-decoration: none;
font-size: 16px;
cursor: cursor;
border: none;
border-bottom: 4px solid #303740;
-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
/*
Introduced in IE 10.
See http://ie.microsoft.com/testdrive/HTML5/msUserSelect/
*/
-ms-user-select: none;
user-select: none;
}
nav,.btn-group { /* make the nav and .btn-group flexbox */
display: flex;
flex-flow: row nowrap;
}
</style>
</head>
<body style="background-color:#1a1a1b;">
<!-- Wrap your form and btn-group in another element such as <nav> -->
<nav>
<form action="https://www.google.com">
<div class="btn-group">
<button class="button">Area</button>
<button class="button">Area1</button>
<button class="button">Area2</button>
</div>
</form>
<div class="btn-group">
<button class="notbutton">no text here ToTaLy No TeXt YAYAYAYAYAYAYAYA</button>
</div>
</nav>
<p style="clear:both"><br>the website</p>
</body>
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