我无法让背景图像流到我的侧边栏中的网站底部。我究竟做错了什么？此外，页面中心的内容已经决定聚集起来，我不知道如何解决这个问题......
如何将它全部变为三列布局？
https://jsfiddle.net/ofusmgbn/
这是css和html
h1{
background-color: black;
background-image: url(logo.png);
background-repeat: no-repeat;
font-family: Peralta;
color: white;
height: 75px;
padding-top: 25px;
padding-left: 150px;}
h2{
font-family: Peralta;
text-align: center;
height: 25px;
background-color: white;
padding-top: 0;}
p{
border-bottom: 1px solid black;
padding-bottom: 4em;
height: 80px;}
img{
float: left;
margin-right: 1em;
width: 150px;
height: 100px;
padding-left: 10px;
border-radius: 20px;}
ul li {
display: inline-block;
}
ul li a:link{
text-decoration: none;
color: black;}
*{
-moz-box-sizing:border-box;
box-sizing: border-box;
}
.sidebar1{
float: left;
width: 265px;
padding: 0 20px 0 20px;
background: url(sidebar1background.jpg);
background-repeat: repeat-y;
}
.main{
float: left;
width: 60%;
padding: 0 20px 0 20px;
background-color: #d4ff80;
}
.sidebar2{
float: right;
width: 265px;
padding-right: 30px;
padding: 0 10px 0 20px;
background: url(sidebar2background.jpg)right top;
background-repeat: repeat-y;
}
#footer{
clear: both;
height: 50px;
padding-top: 15px;
background-color: black;
color: white;
text-align: center;
}
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>SylviaGunter WEB-210 Project 6</title>
<meta name="viewport" content="width=device-width">
<link href='https://fonts.googleapis.com/css?family=Peralta' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Gochi+Hand|Peralta' rel='stylesheet' type='text/css'>
<link rel="stylesheet"
href=01%20-%20Large%20CSS.css>
<link rel="stylesheet" type="text/css" href="02 - Medium CSS">
<link rel="stylesheet" type="text/css" href="03 - Small CSS">
<link rel="stylesheet" type="text/css" href="04 - Print CSS">
<link rel="stylesheet" type="text/css" href="05 - IE">
</head>
<body>
<div class="wrapper">
<div id="masthead">
<h1>Best TV Ever</h1>
</div>
[insert menu toggle here]
[insert menu checkbox here]
<ul>
<li><a href="#">50s</a></li>
<li><a href="#">60s</a></li>
<li><a href="#">70s</a></li>
<li><a href="#">80s</a></li>
<li><a href="#">90s</a></li>
</ul>
<aside class="sidebar1">
Best Prime Time Shows
<ul>
<li><a href="#">Alice</a></li>
<li><a href="#">All In The Family</a></li>
<li><a href="#">Barney Miller</a></li>
<li><a href="#">Beverly Hillbillies</a></li>
<li><a href="#">Bewitched</a></li>
<li><a href="#">The Bob Newhart Show</a></li>
<li><a href="#">The Brady Bunch</a></li>
<li><a href="#">Gilligan's Island</a></li>
<li><a href="#">Good Times</a></li>
<li><a href="#">The Love Boat</a></li>
<li><a href="#">Mary Tyler Moore</a></li>
<li><a href="#">M*A*S*H</a></li>
<li><a href="#">Maude</a></li>
<li><a href="#">One Day At A Time</a></li>
<li><a href="#">Petticoat Junction</a></li>
<li><a href="#">Soap</a></li>
<li><a href="#">Taxi</a></li>
<li><a href="#">What's Happening</a></li>
<li><a href="#">Welcome Back Kotter</a></li>
<li><a href="#">WKRP In Cincinatti</a></li>
</ul>
</aside>
<article class="main">
<h2>The Genius of Krofft</h2>
<h3>H.R. Pufnstuff</h3>
<p> <img src="hrpufnstuff.jpg" alt="hrpufnstuff" height="150" width="200">H.R. Pufnstuf centered on a shipwrecked boy named Jimmy. He and his friend, a talking flute named Freddy, take a ride on a mysterious boat, which promised adventures across the sea, to Living Island. The Mayor of Living Island was a friendly and helpful dragon named H.R. Pufnstuf. The boat was actually owned and controlled by a wicked witch named Wilhelmina W. Witchiepoo who rode on a broomstick-like vehicle called the Vroom Broom. She used the boat to lure Jimmy and Freddy to her castle on Living Island, where she was going to take Jimmy prisoner and steal Freddy. But Pufnstuf found out about her plot and was able to rescue Jimmy when he leaped out of the enchanted boat with Freddy and swam ashore.</p>
<h3>Lidsville</h3>
<p><img src="lidsville.jpg" alt="lidsville" height="150" width="200">
The show involved a teenage boy named Mark who fell into the hat of Merlo the Magician and arrived in Lidsville, a land of living hats. The hats on the show are depicted as having the same characteristics as the humans who would normally wear them.</p>
<h3>The Bugaloos</h3>
<p><img src="bugaloos.jpg" alt="bugaloos" height="150" width="200">The Bugaloos featured a musical group composed of four British-accented teenagers, who lived in fictional Tranquility Forest. They wore insect-themed outfits with antennae and wings which allowed them to fly. They were constantly beset by the evil machinations of Benita Bizarre, played by comedienne Martha Raye.</p>
<h3>Land of the Lost</h3>
<p><img src="landlost.jpg" alt="landlost" height="150" width="200">Land of the Lost details the adventures of the Marshall family (father Rick and his teenage children Will and Holly) who are trapped in an alternate universe inhabited by dinosaurs, a primate-type people called Pakuni, and aggressive humanoid/lizard creatures called Sleestak.</p>
<h3>Sigmund the Sea Monster</h3>
<p><img src="sigmund.jpg" alt="sigmund" height="150" width="200">The show centered on two brothers, Johnny and Scott Stuart, who discover Sigmund, a friendly young sea monster who had been thrown out by his comically dysfunctional undersea family for refusing to frighten people. The boys hide Sigmund in their clubhouse.</p>
</article>
<aside class="sidebar2">
Best Superhero Shows
<ul>
<li><a href="#">Batman (1966)</a></li>
<li><a href="#">The Bionic Woman (1976)</a></li>
<li><a href="#">Electra Woman and Dyna Girl (1976)</a></li>
<li><a href="#">The Greatest American Hero (1981)</a></li>
<li><a href="#">The Incredible Hulk (1977)</a></li>
<li><a href="#">Isis (1975)</a></li>
<li><a href="#">Shazam! (1974)</a></li>
<li><a href="#">The Six Million Dollar Man (1974)</a></li>
<li><a href="#">Wonder Woman (1976)</a></li>
</ul>
</aside>
<div id="footer">
Stop watching TV and write some code!
</div>
</body>
</html>
答案 0 :(得分：1)
你的侧边栏的问题在于它们没有高度，所以它们只是拉伸以使内部的内容变得松弛。如果你想让它们达到一定的高度，你需要定义它。
此外，由于为<p>标记设置的高度不够，您的内容会被收集。只需将其删除并使标签显示：block。