Outer DIV doesn't expand with inner DIVs - css

Question

I am wrapping my page inside a main wrapper div but outer div doesn't expand with inner div.
I want height of main outer div main-wrapper to grow with page contents which is not happening for some reason
I am trying to figure out this problem for sometime but so far no success.
I have set up jsFiddle Example
I would help in this regard.
HTML Structure sample
<!-- main Container -->
<div class="main-wrapper">
<!-- Header -->
<div class="header-wrapper"></div>
<!-- Header -->
<div class="content-wrapper">
<!-- Content Page-->
<!-- banner image wrapper -->
<div class="top-image-wrapper"></div>
<!-- banner image wrapper -->
<!-- page content wrapper -->
<div id="page-content-area" class="page-content-area">
<div id="pg-intro-area" class="pg-intro-area">
<div class="page-title">
<h5>Page Title </h5>
</div>
<div class="page-text"></div>
</div>
<div class="pg-right-bar-wrapper"></div>
</div>
<!-- page content wrapper -->
<!-- Content Page-->
</div>
<div class="footer-wrapper"></div>
</div>
<!-- main Container -->
CSS Related
html, body,form { height:100%; background-color:gray; }
body {
font-family: Verdana,"Trebuchet MS",Arial,sans-serif;
-webkit-font-smoothing: antialiased;
font-size: 11px;
line-height: 16px;
height:100%; margin:0;padding:0; border:0;
color:#656565;
}
p
{
text-align:justify;
color:#687074;
}
hr
{
background-color: #ccc;
border: medium none;
height: 1px;
margin-bottom: 12px;
margin-top: 12px;
}
h5 /* for page title*/
{
font-size:15px;
color:#028F41;
margin:5px 0;
}
.page-title-lbl
{
font-size:15px;
color:#028F41;
padding-left:105px;
background-image:url("../images/title-bar.png");
background-repeat:no-repeat;
text-shadow:0 0 0px #F6F6F6;
}
img
{
border:0px
}
a {
color: #028F41;
text-decoration: none;
}
a:hover,
a:focus {
text-decoration: underline;
}
input {
border: 1px solid #ccc;
font-size: 12px;
height: 20px;
line-height:20px;
vertical-align:middle;
padding-left: 5px;
color:#656565;
}
.btn
{
background-color: #0A8F36;
border: 0 none;
color: #FFFFFF;
font-size: 12px;
font-weight:bold;
height: 24px;
line-height:24px;
}
.margin5-0
{
margin:5px 0;
}
.margin10-0
{
margin:10px 0;
}
.margin20-0
{
margin:20px 0;
}
.padding5-0
{
padding:10px 0;
}
.padding10-0
{
padding:10px 0;
}
.padding20-0
{
padding:20px 0;
}
.margin10-000
{
margin:10px 0 0 0;
}
.margin00-5-0
{
margin:0 0 5px 0;
}
.margin00-10-0
{
margin:0 0 10px 0;
}
.margin20-000
{
margin:20px 0 0 0;
}
.margin00-20-0
{
margin:0 0 20px 0;
}
.main-wrapper
{
width:1000px;
min-height: 100%;
height: auto !important;
height: 100%;
margin:0px auto 0px auto;
background-color:#fff;
padding-left:10px;
padding-right:10px;
}
.header-wrapper
{
height:130px;
background-color:red;
}
.search-sm-wrapper
{
float:right;
width:250px;
height:100px;
}
.search-wrapper
{
text-align:right;
width:250px;
height:25px;
}
.txtSearch
{
float: right;
height: 20px;
width: 150px;
border-right:0px;
}
.btn-search
{
float:right;
}
.language-wrapper
{
float:right;
text-align:right;
width:250px;
height:20px;
}
.language-link
{
color:#656565;
}
.sm-wrapper
{
float:right;
width:250px;
height:25px;
}
.menu-wrapper
{
height:30px;
width:1000px;
background-color:yellow;
}
.content-wrapper
{
float:left;
height:auto;
}
.footer-wrapper
{
float:left;
width:1000px;
}
.brand-logos
{
height:39px;
}
.marquee
{
float:left;
overflow:hidden;
height:39px;
width:1000px;
border:0px solid #f9f9f9;
}
.footer-banner
{
float:left;
height:96px;
width:1000px;
}
.footer-menu
{
display:none;
}
.footer-copyright
{
float:left;
height:20px;
width:1000px;
}
.top-image-wrapper
{
height:240px;
margin-top:6px;
background-color:#f5f5f5;
}
/* home page*/
.hp-intro-area
{
float:left;
width:570px;
margin-right:30px;
}
.hp-right-bar-wrapper
{
float:left;
width:400px;
}
.tabs-wrapper
{
margin:10px 0;
background-color:#E5E5E5;
height:210px;
overflow:hidden;
}
.tab-name-wrapper
{
width:400px;
height:30px;
line-height:30px;
background-color:#fff;
margin-bottom:10px;
overflow:hidden;
}
.tab-content-wrapper
{
margin:0px 10px;
}
.hp-tab-image
{
float:left;
width:100px;
padding-right:10px;
}
/* Page */
.page-content-area
{
width:100%;
height:100%;
}
.page-sub-menu
{
width:100%;
height:23px;
padding:0px 0px;
background-color:blue;
}
.pg-intro-area
{
float:left;
width:570px;
margin-right:30px;
}
.pg-right-bar-wrapper
{
float:left;
width:400px;
}

Answer 1

.main-wrapper{
overflow:auto;
/* other styles here */
}
Or sometimes it just helps to clear your floats properly:
.main-wrapper:before,
.main-wrapper:after {
content : "";
display : table;
}
.main-wrapper:after {
clear : both;
}

Answer 2

Just add:
display: block;
and
float: left;
to your .main-wrapper class, so it will look like this:
.main-wrapper
{
width:1000px;
min-height: 100%;
height: auto !important;
height: 100%;
margin:0px auto 0px auto;
background-color:#fff;
padding-left:10px;
padding-right:10px;
display: block;
float: left;
}