After experimenting with floating elements left, adjusting margins, and clearing labels, I finally got everything to align properly. Thank you for the helpful conversation and resources.
Check out my solution on jsfiddle.net
<!DOCTYPE html>
<html>
<head>
<title>Title</title>
<style type="text/css">
/* CSS styles reset and application-specific styles */
/* Reset CSS properties */
html,
body,
div,
span {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
/* Display roles for HTML5 elements */
article,
aside,
details {
display: block;
}
/* Application-specific CSS */
body {
line-height: 1;
color: #383838;
font-family: arial, helvetica, verdana, sans-serif;
font-size: 0.8em;
background-color: transparent;
margin: 0 auto;
min-height: 100%;
background-color: White;
color: Black;
}
input,
textarea,
select {
font-family: inherit;
font-size: inherit;
}
div#EverythingDiv {
width: 960px;
margin-left: auto;
margin-right: auto;
background: #FFF;
}
div.MainContent {
margin: 0px auto 0px auto;
padding: 0;
min-height: 425px;
text-align: left;
clear: both;
}
fieldset > label {
float: left;
display: block;
width: 150px;
clear: both;
margin-top: 5px;
}
fieldset > input[type=text] {
float: left;
margin-top: 1px;
}
fieldset > textarea {
float: left;
}
fieldset > div.Group {
float: left;
width: 300px;
padding-top: 5px;
}
fieldset > div.Group input[type=radio] {
margin-top: -3px;
vertical-align: middle;
}
fieldset > div.Group > label {
display: block;
margin-bottom: 3px;
line-height: 1.2em;
}
</style>
</head>
<body>
<div id="EverythingDiv">
<h1 id="PageTitleH1">Title</h1>
<div class="MainContent">
<form action="MyPage" method="post">
<div class="validation-summary-valid" data-valmsg-summary="true"><ul><li style="display:none"></li>
</ul></div>
<fieldset>
<legend>Basic Information</legend>
<label for="WebSiteTextBox">Web Site:</label>
<input type="text" id="WebSiteTextBox" value="http://www.google.com/" />
<label for="AddressTextArea">Address:</label>
<textarea id="AddressTextArea" style="float: left; width: 350px; height: 4.4em;">Sample Address</textarea>
<label>Type</label>
<div class="Group">
<label class="RadioLabel"><input type="radio" name="Type"/>Type 1 - Lorem ipsum dolor sit amet, consectetur adipiscing elit.</label>
<label class="RadioLabel"><input type="radio" name="Type"/>Type 2 - Curabitur non odio hendrerit, hendrerit ante quis, rhoncus neque. Nam ac nisi non lorem accumsan dictum. </label>
<label class="RadioLabel"><input type="radio" name="Type"/>Type 3 - Morbi volutpat at eros ut dictum. Nam non arcu ornare, sodales eros nec, semper ante. Nunc tempor augue a est eleifend suscipit. Nam vel ornare leo.</label>
<label class="RadioLabel"><input type="radio" name="Type"/>Type 4 - Nam vel ornare leo.</label>
</div>
</fieldset>
</form>
<div class="Clear"></div>
</div>
</div>
</body>
</html>