所以我想要的是让背景图像保持原样（而不是根据内容的数量改变大小），让左列滚动和（如果可能的话！）右列保持不变。
@import url(http://fonts.googleapis.com/css?family=Special+Elite);
/*font-family: 'Special Elite', cursive;*/
@import url(http://fonts.googleapis.com/css?family=Pacifico);
/*font-family:'Pacifico', cursive;*/
body {
height: 100%;
}
#background {
background-image: url('http://hd4desktop.com/images/b/1920x1080_pathway_in_forest-1211697.jpg');
width: 100%;
height: 100%;
background-position: center fixed;
background-size: cover;
}
.navbar {
position: fixed;
width: 100%;
z-index: 1;
}
ul {
text-align: center;
background-color: #7A4909;
margin-top: 10px;
}
li {
list-style: none;
margin-right: 1em;
font-family: 'Special Elite', cursive;
font-size: 35px;
padding: 12px;
display: inline-block;
}
li a {
color: #D0903C;
background-color: #7A4909;
text-decoration: none;
display: inline-block;
}
.left a:hover {
color: #7A4909;
background-color: #D0903C;
-webkit-transform: rotate(-10deg) scale(1.2);
-moz-transform: rotate(-10deg) scale(1.2);
-o-transform: rotate(-10deg) scale(1.2);
text-transform: uppercase;
}
.right a:hover {
color: #7A4909;
background-color: #D0903C;
-webkit-transform: rotate(10deg) scale(1.2);
-moz-transform: rotate(10deg) scale(1.2);
-o-transform: rotate(10deg) scale(1.2);
text-transform: uppercase;
}
#wrap {
width: 900px;
margin-top: 10px;
margin-right: auto;
margin-left: auto;
overflow-y: auto;
padding-top: 90px;
}
#content {
width: 700px;
background-color: #D09B54;
float: left;
opacity: 0.6;
}
#sidebar {
width: 200px;
float: left;
background-color: #D0903C;
}
#sidebar ul li {
font-size: 20px;
}
h1 {
text-align: center;
font-family: 'Pacifico', cursive;
}
p {
font-family: 'Dawning of a New Day', cursive;
}<body id="background">
<ul class="navbar">
<li class="left"><a href="home.html">Home</a>
</li>
<li class="right"><a href="contact.html">Contact Me</a>
</li>
<li class="left"><a href="blog.html">Blog</a>
</li>
<li class="right"><a href="funny.html">Funny</a>
</li>
</ul>
<div id="wrap">
<div id="content">
<h1>Lorem Ipsum!</h1>
<p>
Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata
sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et
ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.
At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore
eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh
euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate
velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis
eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim
ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis.
At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
At accusam aliquyam diam diam dolore dolores duo eirmod eos erat, et nonumy sed tempor et et invidunt justo labore Stet clita ea et gubergren, kasd magna no rebum. sanctus sea sed takimata ut vero voluptua. est Lorem ipsum dolor sit amet. Lorem
ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat. Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed
diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita
</p>
</div>
<!--end content div-->
<div id="sidebar">
<ul>
<li><a href="blog1.html">Blog1</a>
</li>
<li><a href="blog1.html">Blog1</a>
</li>
<li><a href="blog1.html">Blog1</a>
</li>
<li><a href="blog1.html">Blog1</a>
</li>
<li><a href="blog1.html">Blog1</a>
</li>
</ul>
</div>
<!--end sidebar div-->