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理想情况下，<div id="main">宽度应为 560 像素，高度为 100%，背景颜色为 #333333。然而，事实并非如此。简而言之，就像在刷新页面后一样，我可以看到背景颜色在那里，但是一旦页面完成加载，它就会消失。这让我觉得我的 CSS 中某处存在冲突，我只是不确定在哪里。我如何获得<div id="main">背景？这是我正在使用的：

HTML
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Parlour</title>
    <link rel="stylesheet" type="text/css" href="style.css" />
</head>

<body>
<div id="container">
    <header>
    <nav>
        <ul>
        <li><a href="#">ABOUT</a></li>
        <li><a href="#">SERVICES</a></li>
        <li><a href="#">GALLERY</a></li>
        <li><a href="#">PRODUCTS</a></li>
        <li><a href="#">GET IN TOUCH</a></li>
        </ul>
    </nav>
    </header>

    <div id="logo">
    <a href="#"><img src="img/parlour_side.png" alt="Parlour Salon logo" /></a>
    </div><!-- end logo -->

    <div id="main">
    <div class="brief">
        <h2><a href="#"><span>ABOUT PARLOUR</span></a></h2>
        <p>Parlour is blah blah blah.</p>    
        </div><!-- end brief -->
    <div class="brief">
        <h2><a href="#"><span>SERVICES</span></a></h2>
        <p>Parlour offers blah blah blah.</p>
    </div><!-- end brief -->
    <div class="brief">
        <h2><a href="#"><span>PRODUCTS</span></a></h2>
        <p>At Parlour, we believe blah blah blah.</p>
    </div><!-- end brief -->
    <div class="brief">
        <h2><a href="#"><span>GET IN TOUCH</span></a></h2>
        <p>1522 U Street NW<br/>Washington DC<br/>202-986-0080</p>
        <div class="social">
            <a href="#"><img src="img/facebook.png" alt="Parlour Facebook" /></a>
            <a href="#"><img src="img/twitter.png" alt="Parlour Twitter" /></a>
            <a href="#"><img src="img/youtube.png" alt="Parlour YouTube" /></a>
            <a href="#"><img src="img/yelp.png" alt="Parlour Yelp" /></a>
        </div><!-- end social -->
    </div><!-- end brief -->


    </div><!-- end main -->
</div><!-- end container -->
</body>

CSS

/* Reset */

html, body, div, span, object, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, address, code, img,
small, strong, dl, dt, dd, ol, ul, li
fieldset, form, label {
    background: url(img/background.jpg) no-repeat center center fixed; 
    background-size: cover;
    border: 0;
    font-size: 100%;
    margin: 0;
    outline: 0;
    padding: 0;
    vertical-align: baseline;
}

body {
    background: url('img/background.jpg');
    font-family: nevis-webfont;
    color: #ffffff;
}

ol, ul {
    list-style-type: none;
}

/* Type */

@font-face {
    font-family: nevis-webfont;
    src: url('type/nevis-webfont.eot');
    src: url('type/nevis-webfont.eot?#iefix') format('embedded-opentype'),
         url('type/nevis-webfont.woff') format('woff'),
         url('type/nevis-webfont.ttf') format('truetype'),
         url('type/nevis-webfont.svg#') format('svg');
    font-weight: normal;
    font-style: normal;
}

h1 {
    font-family: Didot, "Bodoni MT", "Century Schoolbook", "Niagara Solid", Utopia, Georgia, Times, "Times New Roman", serif;
    font-size: 125%;
    font-weight: normal;
    letter-spacing: 1px;
    line-height: 1.5;
    text-transform: uppercase;
}

h2 {
    font-family: Didot, "Bodoni MT", "Century Schoolbook", "Niagara Solid", Utopia, Georgia, Times, "Times New Roman", serif;
    font-size: 125%;
    font-weight: normal;
    line-height: 1.5;
}

h3 {
    font-family: nevis-webfont;
    font-size: 75%;
    font-weight: normal;
    letter-spacing: 1px;
    line-height: 1.5;
    text-transform: uppercase;
}

p {
    font-family: nevis-webfont;
    font-size: 75%;
    line-height: 1.5;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Basic */

#container {
    width: 100%;
}

#logo {
    float: left;
    margin-left: 100px;
    margin-top: 200px;
}

/* Header */

nav {
    background: #333333;
    height: 35px;
    width: 100%;
}

nav ul {
    background: #333333;
    margin-left: 220px;
    padding-bottom: 5px;
    padding-top: 5px;
}

nav ul li {
    background: #333333;
    display: inline;
}

nav ul li a {
    background: #333333;
    color: #ffffff;
    font-family: nevis-webfont;
    font-size: 75%;
    letter-spacing: 1px;
    text-decoration: none;
    margin: 0 16px;
}

/* Main */

#main {
    background-color: #333333;
    height: 100%;
    width: 560px;
    margin-left: 230px;
    margin-top: 200px;
    overflow: hidden;
}

#main .brief h2 span {
    color: #ffffff;
    text-decoration: none;
}

JSFiddle虽然这不是我所看到的，所以这里是本地站点的屏幕截图.. 图片

4

1 回答 1

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您的 CSS 重置不正确。CSS 重置应该只用于删除选定元素的一些默认样式，但您也可以应用您只想添加到 HTML（而不是每个div等）的背景图像。只需从 CSS 中删除背景属性并将其移动为仅使用您的 HTML，您就可以开始使用了。

html { background: url(img/background.jpg) no-repeat center center fixed; 
        background-size: cover; }

html, body, div, span, object, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, address, code, img,
small, strong, dl, dt, dd, ol, ul, li
fieldset, form, label {
    /* Other reset properties */
}

这是小提琴（使用的另一个背景图像）。

于 2012-08-11T18:34:00.087 回答