HTML CSS Lists in IE7 - html

Question

I don't normally work with IE7 simply because I hate it, but my latest client uses IE7-IE9 as their default browsers (not very consistent or up-to-date I know). So I have a list that renders fine in all newer browsers and IE8+ but in IE7 the UL seem to merge into the LI. Its like the tag didn't exist and the UL was a part of the LI. Each list item is nested inside of the one on top of it. Its hideous. Anyone know of a hack or a way around this? Is my CSS messed up?
<div class="indentList">
<ul class="level1">
<li class="customer">
Title
</li>
<ul class="level2 level" id="level2">
<li class="site">
Text
</li>
<ul class="level3 level" id="level3">
<li class="engineer indent">
Name
</li>
</ul>
<ul class="level2 level" id="level2">
<li class="site">
Text
</li>
<ul class="level3 level" id="level3">
<li class="engineer indent">
Name
</li>
<ul class="level4 level" id="level4">
<li>
Item
</li>
<li>
Item
</li>
</ul>
</ul>
</ul>
</ul>
</div>
.indentList ul {
margin: 0px;
padding: 0px;
float: left;
}
.indentList li a {
width: 770px;
margin: 0px 0px;
padding: 10px 0px;
display: inline-block;
float: left;
}
.indentList li:hover {
background: #E9E9E9;
}
.indentList li a:hover {
text-decoration: none;
}
.indentList li .edit {
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
border-radius: 4px;
padding: 5px 14px;
width: auto !important;
margin: 4px 0px 0px 5px;
text-align: center;
display: inline;
position: relative;
float: right;
}
.indentList li .edit.frozen {
background: #b51a1a url('images/menuBackgroundRed.png') center;
float: right;
}
.indentList li.customer {
background: #787878 url('images/menuBackgroundTaller.png') center;
color: #FFF;
box-shadow: inset 0px 0px 0px;
-moz-box-shadow: inset 0px 0px 0px;
-webkit-box-shadow: inset 0px 0px 0px;
}
.indentList li.customer a {
color: #FFF;
font-family: 'QuicksandBook', Arial, sans-serif;
font-size: 17px;
}
.level2, .level3, .level4 {
display: block;
}
.indentList ul ul ul li {
margin-left: 50px;
width: 840px;
}
.indentList ul ul ul li a {
width: 770px;
}
.indentList ul ul ul ul li {
margin-left: 90px;
width: 800px;
}
.indentList ul ul ul ul li a {
width: 730px;
}

Answer 1

Not your CSS, but your HTML is messed up.
You should be doing this (pseudocode):
<ul class="first-level">
<li>
<ul class="second-level">
<li>
<ul class="third-level">
<li></li>
</ul>
</li>
</ul>
</li>
</ul>
instead of this:
<ul class="first-level">
<li></li>
<ul class="second-level">
<li></li>
<ul class="third-level">
<li></li>
</ul>
</ul>
</ul>