标题重叠主体内容

所以我正在布局，并已完成标题。当我开始研究身体内容时，我一直遇到头部会与身体重叠的问题，除非我将身体包装的顶部边缘设置为巨大的（300 + px），即使在屏幕很小时它可以重叠。我想我已经搞糟了这个定位，但我似乎无法弄清楚如何克服这个问题。标题重叠主体内容

我的HTML：

<body> 
<div id="pageWrapper"> 
<div id="mainHeader"> 
<div id="mainNav"> 
<div id="navContent"> 
<div class="mainLogo"></div> 
<div style="display: inline-block;"> 
<ul> 
<li><a href="#"><img class="navIcons" src="http://lifeview.michiganweb.org/img/icons/dashboard.png" />Dashboard</a></li> 
<li><a href="#"><img class="navIcons" src="http://lifeview.michiganweb.org/img/icons/patient.png" />Patients</a></li> 
<li><a href="#"><img class="navIcons" src="http://lifeview.michiganweb.org/img/icons/devices.png" />Devices</a></li> 
<li><a href="#"><img class="navIcons" src="http://lifeview.michiganweb.org/img/icons/account.png" />Account</a></li> 
<li><a href="#"><img class="navIcons" src="http://lifeview.michiganweb.org/img/icons/support.png" />Support</a></li> 
</ul> 
</div> 
<div class="lvpLogo"><strong>LifeView</strong> Portal</div> 
</div> 
</div> 
<div id="subNav"> 
<span class="loginName">Doctor Brian Town</span> 
</div> 
</div> 
<div id="bodWrap"> 
<div class="statWrap"><div class="titleWrap"><span>Chronic Disease Summary</span></div> 
<img src="http://lifeview.michiganweb.org/img/icons/support.png" /><img src="img/icons/account.png" /><img src="http://lifeview.michiganweb.org/img/icons/devices.png" /><img src="http://lifeview.michiganweb.org/img/icons/patient.png" /> 
</div> 
<div class="statWrap"><div class="titleWrap"><span>Vital Summary</span></div> 

</div> 
<div class="statWrap"><div class="titleWrap"><span>Alerts</span></div> 

</div> 
</div> 
</div> 
</body>

我的CSS：

@charset "utf-8"; 
body { 
font-family: Verdana,Arial,Helvetica,sans-serif; 
font-size: 14px; 
} 
.pageWrapper { 
width: 100%; 
position: fixed; 
} 
.mainLogo { 
background:url(http://lifeview.michiganweb.org/img/home_02.png) no-repeat left; 
height: 77px; 
width: 300px; 
display: inline-block; 
margin-left: 26px; 
margin-right: 30px; 
float: left; 
} 
#mainHeader { 
position: absolute; 
left: 0; 
top: 0; 
width: 100%; 
overflow: hidden; 
border: 1px; 
} 
#mainNav { 
/*height: 109px;*/ 
width: 100%; 
float: left; 
left: 0px; 
margin: 0px; 
padding: 0px; 
color: #FFFFFF; 
/*background:url(http://lifeview.michiganweb.org/img/home_01.jpg) repeat-x scroll top;*/ 
/* IE10 Consumer Preview */ 
background-image: -ms-linear-gradient(top, #0e448e 0%, #2b2c2e 100%); 
/* Mozilla Firefox */ 
background-image: -moz-linear-gradient(top, #0e448e 0%, #2b2c2e 100%); 
/* Opera */ 
background-image: -o-linear-gradient(top, #0e448e 0%, #2b2c2e 100%); 
/* Webkit (Safari/Chrome 10) */ 
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #0e448e), color-stop(1, #2b2c2e)); 
/* Webkit (Chrome 11+) */ 
background-image: -webkit-linear-gradient(top, #0e448e 0%, #2b2c2e 100%); 
/* W3C Markup, IE10 Release Preview */ 
background-image: linear-gradient(to bottom, #0e448e 0%, #2b2c2e 100%); 
} 
#navContent { 
padding-top: 20px; 
} 
#mainNav #navContent ul { 
list-style: none; 
margin: 0 auto; 
padding: 0; 
} 
#mainNav #navContent li { 
float: left; 
} 
#mainNav #navContent li a { 
display: inline-block; 
padding: 8px 15px; 
text-decoration: none; 
font-weight: bold; 
color: #FFF; 
border-right: 1px solid #ccc; 
} 
#mainNav #navContent li:first-child a { 
border-left: 1px solid #ccc; 
} 
#mainNav #navContent li a:hover { 
color: #23afff; 
} 
#mainNav #navContent h1 { 
font-family: Verdana,Arial,Helvetica,sans-serif; 
font-size: 24px; 
margin-bottom: 2px; 
} 
.lvpLogo { 
margin: auto auto auto auto; 
display: inline-block; 
word-spacing: 20px; 
vertical-align: top; 
float: right; 
padding-right: 80px; 
} 
.lvpLogo strong { 
font-family: Verdana, Geneva, sans-serif; 
font-size: 36px; 
margin-bottom: 2px; 
} 
.navIcons { 
display: block; 
margin-left: auto; 
margin-right: auto; 
margin-bottom: 1px; 
height: 35px; 
width: 35px; 
} 
#subNav { 
overflow: hidden; 
height: 40px; 
width: 100%; 
margin: 0px; 
padding: 0px; 
color: #000000; 
/* IE10 Consumer Preview */ 
background-image: -ms-linear-gradient(top, #FFFFFF 0%, #cccccc 100%); 
/* Mozilla Firefox */ 
background-image: -moz-linear-gradient(top, #FFFFFF 0%, #cccccc 100%); 
/* Opera */ 
background-image: -o-linear-gradient(top, #FFFFFF 0%, #cccccc 100%); 
/* Webkit (Safari/Chrome 10) */ 
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #FFFFFF), color-stop(1, #cccccc)); 
/* Webkit (Chrome 11+) */ 
background-image: -webkit-linear-gradient(top, #FFFFFF 0%, #cccccc 100%); 
/* W3C Markup, IE10 Release Preview */ 
background-image: linear-gradient(to bottom, #FFFFFF 0%, #cccccc 100%); 
} 
.loginName { 
float: right; 
margin-right: 120px; 
color: #000000; 
font-weight: bold; 
line-height: 40px; 
margin-bottom: 2px; 
} 
#bodWrap { 
width: 100%; 
left: 0px; 
padding: 0px; 
color: #000000; 
} 
.statWrap { 
margin: 10px auto auto auto; 
border: 2px solid #000; 
border-radius: 19px; 
width: 80%; 
background-color: #eee; 
} 
.titleWrap { 
postion: absolute; 
background-color: #00639c; 
top: 0; 
height: 30px; 
border-radius: 30px; 
} 
.titleWrap span { 
color: #FFFFFF; 
font-weight: bold; 
margin: auto auto auto 33px; 
line-height: 30px; 
}

的jsfiddle： http://jsfiddle.net/Artsen/tKdqh/ 测试环境： http://lifeview.michiganweb.org/

来源

2013-04-12 Artsen