Same Code, Same Browser, Different Machines = Different Form Layout - css

Question

I developed a web app in PHP/HTML5/JavaScript/CSS... and am mow having a CSS issue which I don't understand.
On my PC, the code lays out how I want it to
On my friend's PC, it shows differently
Same version of Chrome in use.
The issue is when I update the form to show extra rows via JavaScript/Ajax. As soon as those rows come on screen, it's ALL bad. Here's some pictures:
1.) My friend's computer when the new form lines load (problem in fieldset "Split Transaction Details"):
COSMOS Form - New Rows - Wierd
2.) My computer when the new form lines load:
COSMOS Form - New Rows - Expected
Code snippet from my PHP/HTML/JavaScript:
<script>
function SplitTrans(num) {
var xmlhttp;
var n = document.getElementById("numsplit");
var splitnum = n.options[n.selectedIndex].value;
document.getElementById("transMasterCat").readOnly = true;
document.getElementById("transSubCat").readOnly = true;
document.getElementById("transAmount").readOnly = true;
document.getElementById("transStudent").readOnly = true;
document.getElementById("transMemo").readOnly = true;
document.getElementById("transParticipant").setAttribute('class', 'label-lb');
document.getElementById("transPaymentMethod").setAttribute('class', 'label-lb');
if (num == "0")
{
document.getElementById("splitRows").innerHTML = "";
document.getElementById("transMasterCat").readOnly = false;
document.getElementById("transSubCat").readOnly = false;
document.getElementById("transAmount").readOnly = false;
document.getElementById("transStudent").readOnly = false;
document.getElementById("transMemo").readOnly = false;
document.getElementById("transParticipant").setAttribute('class', 'label-l');
document.getElementById("transPaymentMethod").setAttribute('class', 'label-l');
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
document.getElementById("splitRows").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "split-ar.php?splitnum=" + splitnum, true);
xmlhttp.send();
}
</script>
...
<form action="acctsrecv.php" method="post">
<fieldset class="fieldset">
<legend class="legend">Add New Accounts Receivable Transaction</legend>
<fieldset class="fieldset2">
<legend class="legend">Transaction Split Option</legend>
<label for "transSplitNum" class="label-l">Number Of Parts: </label><select name='numsplit' id="numsplit"><option value='0'>Select</option><option value='2'>2</option><option value='3'>3</option><option value='4'>4</option></select><br />
<input type="button" class="button" Value="Split" onclick="SplitTrans(1)" /> <input type="button" class="button" Value="Clear" onclick="SplitTrans(0)" /><br />
</fieldset>
...
</fieldset>
<div id="splitRows">
</div>
As per comments, here's my CSS:
/* Original CSS assembled by Marko Mihelcic at mcville and James Koster from sixshootermedia*/
html, body {
margin:0;
padding:0;
height:100%;
}
body {
margin:0;
font-family:"Trebuchet MS", Arial, Verdana;
font-size:0.74em;
color:#555555;
background-color:#FFFFFF;
text-align:left;
}
a {
color:#4D87CE;
font-weight:bold;
text-decoration:none;
}
a:hover {
color:#2a65ad;
}
ol,ul {
}
li {
list-style-image:url(../images/backgrounds/li.gif);
line-height:20px;
text-align:left;
}
.debug {
border:1px dashed red;
}
#container {
min-height:100%;
position:relative;
/*border: 1px solid black;*/
}
#menu {
width:100%;
padding-top:20px;
padding-bottom:20px;
background-color:#FFFFFF;
margin-bottom:50px;
color:#FFFFFF;
text-align:center;
font-family:Verdana, Arial, Helvetica, sans-serif;
font-size:11px;
font-variant:small-caps;
background-image:url('../images/backgrounds/back.png');
}
#menu a {
color:#FFFFFF;
text-decoration:none;
padding:10px;
padding-top:20px;
padding-bottom:20px;
}
#menu a:hover {
border-bottom:1px solid #ffffff;
border-left:1px solid #243482;
border-right:1px solid #243482;
padding-left:9px;
padding-right:9px;
color:#000000;
background-color:#FFFFFF;
background-image:url(../images/backgrounds/hover.jpg);
}
#header {
width:925px;
/*height: 92px;*/
margin:0 auto 0 auto;
margin-bottom:15px;
/*border: 1px solid gray;*/
}
#header h1 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:30px;
text-transform:uppercase;
font-weight:normal;
margin:0;
padding:0;
padding-top:5px;
color:#253183;
margin-bottom:10px;
text-align:left;
}
#header h2 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:15px;
text-transform:uppercase;
text-align:right;
font-weight:normal;
margin:0;
padding:0;
color:#000000;
border-bottom:1px solid #eeeeee;
}
#content {
width:925px;
margin:0;
text-align:left;
padding-bottom:54px; /* Total height of the footer */
overflow: auto;
/*border: 1px solid green;*/
}
/*.introduction {
font-family:Helvetica, Arial, sans-serif;
line-height:20px;
font-size:12px;
color:#99B198;
text-indent:25px;
background-image:url(../images/backgrounds/desc.jpg);
background-position:bottom left;
padding-left:0;
padding-right:200px;
padding-bottom:35px;
padding-top:0;
background-repeat:no-repeat;
}*/
.logo {
float:left;
margin-right:30px;
margin-bottom: 5px;
}
.clearer {
clear:both;
}
#sidebar {
width:150px;
float:right;
font-size:95%;
color:#253183;
text-align:left;
/*border: 1px solid blue;*/
}
#sidebar .badlogin {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:12px;
text-align: center;
color: red;
}
#sidebar h1 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:20px;
text-transform:uppercase;
font-weight:normal;
border-bottom:1px solid #eeeeee;
color:#253183;
text-align:right;
}
#sidebar .fieldset {
//border: 1px solid black;
padding: 2px;
border: none;
width:131px;
}
#sidebar .input {
border: 1px solid #006;
background: #ffc;
margin-bottom: 5px;
}
#sidebar .button {
border: none;
background: url('../images/backgrounds/up.png') no-repeat top left;
padding: 2px 8px;
margin-top: 5px;
}
#sidebar .button:hover {
border: none;
background: url('../images/backgrounds/pressed.png') no-repeat top left;
padding: 2px 8px;
}
#sidebar .label {
display: inline;
width: 131px;
float: left;
margin: 2px 4px 6px 4px;
text-align: left;
border: none;
}
#sidebar br {
clear: left;
}
.submenu {
}
.submenu a {
display:block;
width:95%;
background-image:url('../images/backgrounds/submenua.png');
background-position:right;
background-repeat:no-repeat;
padding:5px;
padding-right:0;
}
.submenu a:hover {
background-color:#eeeeee;
background-image:url('../images/backgrounds/submenua.gif');
background-repeat:no-repeat;
}
#mainbar {
margin-right:155px;
padding-right:5px;
background-image:url('../images/backgrounds/mainbar.jpg');
background-position:top right;
background-repeat:no-repeat;
padding-bottom: 10px;
/*border: 1px solid red;*/
}
#mainbar ol {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:12px;
}
#mainbar ol li {
list-style: decimal outside none;
}
#mainbar ul {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:12px;
}
#mainbar ul li {
list-style: square outside none;
}
#mainbar .nologin {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:14px;
text-align: center;
color: red;
}
#mainbar .warning {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:20px;
font-weight: bold;
text-align: center;
color: red;
}
#mainbar h1 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:25px;
text-transform:uppercase;
font-weight:normal;
border-bottom:1px solid #eeeeee;
color:#253183;
}
#mainbar .h1a {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:20px;
//text-transform:uppercase;
font-variant:small-caps;
font-weight:normal;
border-bottom:1px solid #253183;
color:#253183;
}
#mainbar h2 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:15px;
text-transform:uppercase;
text-align:left;
font-weight:normal;
margin:0;
padding:0;
color:#253183;
border-bottom:1px solid #eeeeee;
}
#mainbar .h2a {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:15px;
text-transform:uppercase;
text-align:left;
font-weight:normal;
margin:0;
padding:0;
color:#253183;
border-bottom:1px solid #253183;
}
#mainbar h3 {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
color:#253183;
}
#mainbar .h3a {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
color:#253183;
font-weight:normal;
}
#mainbar p {
padding:5px;
line-height:15px;
font-size: 13px;
font-weight:normal;
}
#mainbar figcaption {
font-family:"Century Gothic", "Trebuchet MS", "Arial Narrow", Arial, sans-serif;
font-size:13px;
font-style: italic;
font-weight:bold;
}
#mainbar .articleimg {
float:right;
padding:5px;
border:1px solid #eeeeee;
margin-left:20px;
margin-top:20px;
margin-bottom:20px;
}
#mainbar .articleimg2 {
padding:5px;
border:1px solid #eeeeee;
margin-left:20px;
margin-top:20px;
margin-bottom:25px;
}
#mainbar .table {
border-collapse:collapse;
border-spacing:0;
border:2px solid #253183;
}
#mainbar .th {
font-size:14px;
font-weight:bold;
background: #253183;
color: #FFFFFF;
padding:10px 5px;
border: 1px solid black;
border-bottom: 2px solid black;
overflow:hidden;
word-break:normal;
}
#mainbar .td1 {
font-size:14px;
font-weight: normal;
color: #000000;
padding:10px 5px;
border-style:solid;
border-width:1px;
border-color: black;
overflow:hidden;
word-break:normal;
}
#mainbar .td2 {
font-size:14px;
font-weight: normal;
background: #BBD9F3;
color: #000000;
padding:10px 5px;
border-style:solid;
border-width:1px;
border-color: black;
overflow:hidden;
word-break:normal;
}
#mainbar .fieldset {
border: 1px solid black;
width:740px;
}
#mainbar .fieldset2 {
border: 1px solid black;
/*width:740px;*/
}
#mainbar .legend {
font-size:14px;
font-weight: bold;
}
#mainbar .label-l {
display: inline;
width: 131px;
float: left;
margin: 2px 4px 6px 4px;
text-align: left;
//border: 1px solid red;
}
#mainbar .label-lb {
display: inline;
width: 131px;
float: left;
margin: 2px 4px 6px 4px;
text-align: left;
font-weight: bold;
//border: 1px solid red;
}
#mainbar .input-l {
border: 1px solid #006;
background: #ffc;
margin-bottom: 5px;
float: left;
}
#mainbar .label-r {
display: inline;
width: 131px;
float: right;
margin: 2px 4px 6px 4px;
text-align: left;
//border: 1px solid red;
}
#mainbar .label-rb {
display: inline;
width: 131px;
float: right;
margin: 2px 4px 6px 4px;
text-align: left;
font-weight: bold;
//border: 1px solid red;
}
#mainbar .input-r {
border: 1px solid #006;
background: #ffc;
margin-bottom: 5px;
float: right;
}
#mainbar .label-l2 {
display: inline;
width: 240px;
float: left;
margin: 2px 4px 6px 4px;
text-align: left;
//order: 1px solid red;
}
#mainbar .input-l2 {
border: 1px solid #006;
background: #ffc;
margin-bottom: 5px;
float: left;
}
#mainbar .label-r2 {
display: inline;
width: 240px;
float: right;
margin: 2px 4px 6px 4px;
text-align: left;
//border: 1px solid red;
}
#mainbar .input-r2 {
border: 1px solid #006;
background: #ffc;
margin-bottom: 5px;
float: right;
}
#mainbar .txta {
width: 704px;
height: 120px;
border: 1px solid black;
padding: 5px;
float: left;
}
#mainbar .txta2 {
width: 704px;
height: 36px;
border: 1px solid black;
padding: 5px;
float: left;
}
#mainbar .txta3 {
width: 680px;
height: 120px;
border: 1px solid black;
padding: 5px;
float: left;
}
#mainbar .button {
border: none;
background: url('../images/backgrounds/up.png') no-repeat top left;
padding: 2px 8px;
margin-top: 5px;
}
#mainbar .button:hover {
border: none;
background: url('../images/backgrounds/pressed.png') no-repeat top left;
padding: 2px 8px;
}
#mainbar .submit {
clear: both;
postition: relative;
left:341px;
}
#mainbar .center {
margin-left: auto;
margin-right: auto;
}
#mainbar br {
clear: left;
}
#footer {
/* width:80%; */
background-color:#253183;
border-top:1px solid #81C0FF;
border-bottom:5px solid #253169;
padding-top:5px;
padding-bottom:5px;
color:#FFFFFF;
position:relative;
margin-top: -54px; /* Total height of the footer */
clear: both;
bottom:0;
width:100%;
height:38px; /* Height of the footer */
text-align: center;
}
#footer a {
color:#81C0FF;
}
#footer a:hover {
color:#AFD7FF;
}
Can someone please help me understand why this is happening, and how to fix it?
Thank you very much in advance!!