CSS - Problems With Y-repeat Background

Hello, I am trying to automatically make my height of the website larger as more text is put in. It works fine with my center body div as it gets larger as i type more text into the site. However, the list i have in there isnt making it larger for some reason.

here is my css code:

html, body
{
margin: 0px;
padding: 0px;
background-color: #000000;
}

/**************************/
/**************************/
/**********LAYOUT**********/
/**************************/
/**************************/
div#container
{
margin-left: auto;
margin-right: auto;
margin-top: 20px;
width: 963px;
height: 100%;
border-style: solid;
border-color: #CC9900;
border-width: 2px;
}

/*****HEADER*****/
div#header
{
background-color: Teal;
width: 963px;
height: 175px;
}

/****************/
/*****MIDDLE*****/
/****************/
div#middle
{
width: 963px;
float: left;
background-image: url('../images/left.png');
background-repeat: repeat;
}

/*****LEFT BOX*****/
div#leftbox
{
background-image: url('../images/left.png');
background-repeat: repeat-y;
height: auto;
width: 213px;
float: left;
}

div#links
{
width: 213px;
height: 375px;
float: left;
background-image: url('../images/links.png');
}

/*****MIDDLE BOX*****/
div#centerbox
{
background-image: url('../images/body.png');
background-repeat: repeat-y;
width: 535px;
float: left;
border-left: solid 1px #CC9900;
border-right: solid 1px #CC9900;
}

div#title
{
width: 535px;
height: 40px;
border-bottom-style: solid;
border-bottom-color: #CC9900;
border-bottom-width: 1px;
margin-top: 0px;
}

div#list
{
width: 535px;
height: auto;
background-image: url('../images/left.png');
background-repeat: repeat-y;

}

/*****RIGHT BOX*****/
div#rightbox
{
background-image: url('../images/left.png');
width: 213px;
background-repeat: repeat-y;
float: right;
}

div#news /*This is the title text for the news box*/
{
width: 213px;
height: 25px;
margin: auto;
}

div#newsbox /*This is the news box div*/
{
width: 199px;
height: 199px;
border: 0px;
background-color: #FFFFFF;
margin-left: auto;
margin-right: auto;
margin-top: auto;
margin-bottom: auto;

}

div#events
{
width: 213px;
height: 25px;
margin: auto;
}

div#eventsbox
{
width: 199px;
height: 199px;
border: 0px;
background-color: #FFFFFF;
margin-left: auto;
margin-right: auto;
margin-top: auto;
margin-bottom: auto;

}

/****************/
/*****FOOTER*****/
/****************/
div#footer
{
background: #333333;
width: 963px;
height: 55px;
clear: both;
background-image: url('../images/footer.jpg');
}

/*****CONTACTS*****/
div#phone
{
float: left;
width: 213px;
height: 55px;
text-align: left;

}

div#address
{
float: left;
width: 535px;
height: 55px;
text-align: center;
}

div#e-mail
{
float: left;
width: 213px;
height: 55px;
text-align: right;
}

/*****FLASH DIVS*****/
div#flashcontent
{
width: 963px;
height: 175px;
}

/********************/
/*****PROPERTIES*****/
/********************/

/*****DIVS*****/
div.event1
{
background-image: url('../images/event_1.jpg');
width: 210px;
height: 150px;
float: left;
margin-left: 37.5px;
margin-right: 20px;
margin-top: auto;
margin-bottom: auto;


}

div.event2
{
background-image: url('../images/event_2.jpg');
width: 210px;
height: 150px;
float: left;
margin-left: 20px;
margin-right: 37.5px;
margin-top: auto;
margin-bottom: auto;
}

div.list
{
width: 535px;

}

div.listtext
{
width: 435px;
}

div.sublisttext
{
width: 335px;
}

/*****LISTS*****/
ul
{
text-decoration: none;
margin-top: auto;
margin-bottom: auto;
margin-left: -10px;
width: 213px;
}

li {
list-style-image: url('../images/diamond_bullet_white.png');
width: 213px;
height: 31.25px;
margin: auto;
line-height: 31.25px;
}

/*****ANCHORS*****/
a
{
text-decoration: none;
color: #000000;
width: 213px;
height: 31.25px;
margin: auto;
}

a.e-mail /*This is issued to any anchors for e-mail, addresses*/
{
color: #000000;
font-weight: bold;
}

a:active
{
color: Red;
text-decoration: none;
list-style: none;
}

a.contacts
{
margin: none;
color: #FFFFFF;
}

/***PARAGRAPHS***/

p#contactinfo
{
color: #FFFFFF;
font-size: 11.5px;
height: 55px;
margin-top: 6px;
margin-left: 10px;
margin-right: 10px;
}

p.title
{
color: #000000;
font-size: 30px;
text-align: center;
margin-top: 0px;
margin-bottom: 0px;
height: 40px;
}

p.body
{
width: 500px;
margin: auto;
}

p.boxtitle
{
font-size: 20px;
text-align: left;
margin-left: 7px;
margin-top: auto;
margin-bottom: auto;
}

p.subheader
{
width: 500px;
font-size: 14px;
text-align: left;
font-weight: bold;
margin: auto;
}