The most obvious problem I see is that your code do not compile:
html.Append("<span id="elename" style="font-size:13px;padding-removed30px;">" + elename + "</span>");
html.Append("<span id="ele.Value" style=" font-size:13px;padding-removed30px;">" + ele.Value + "</span>");
is not legal.
I think posting real code in question would help.