w3c error help please

Hi,I am coding a website using HTML5 using dreamweaver, but i have validate one of my page in w3c validater but i got an error that i don’t know how to fix it: Here is the errors apper: & it hightlighted below in html…as well as is css is below also… ?thank you very much.

Line 40, Column 27: Quote " in attribute name. Probable cause: Matching quote missing somewhere earlier.
<div id=“cssmenu” class"thumbnail">

Line 40, Column 37: Quote " in attribute name. Probable cause: Matching quote missing somewhere earlier.
<div id=“cssmenu” class"thumbnail">

Line 40, Column 38: Attribute class"thumbnail" is not serializable as XML 1.0.
<div id=“cssmenu” class"thumbnail">

Line 40, Column 38: Attribute class"thumbnail" not allowed on element div at this point.
<div id=“cssmenu” class"thumbnail">
Attributes for element div:
Global attributes

Here is html5 code

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Untitled Document</title>
<link href="style.css" rel="stylesheet" type="text/css">
<style>
table{
	width:600px;
	border:0px;
	
}

#countries-of-tour{
	text-align:center;
	width:155px;
}
#time-and-places{
	width:101px;
	text-align:center;
}
#speacial-trip{
	width:166px;
	text-align:center;
}
#childern-program{
	width:282;
	text-align:center;
}

</style>
</head>


<body>
<div class="container">
<div id="header">

   <img src="images/logo.gif" alt="logo" width="178" height="150" id="logo">
 [COLOR="#cccccc"]  <div id="cssmenu" class"thumbnail">[/COLOR]
     <ul>
   <li class="active"><a href="index.html"><span>Home</span></a></li>
   <li class="has-sub"><a href="#"><span>About</span></a>
      <ul>
         <li><a href="About.html"><span>About Us</span></a></li>
         <li class="last"><a href="contactuss.html"><span>Contact Us</span></a></li>
      </ul>
   </li>
   <li class="has-sub"><a href="#"><span>Tea</span></a>
      <ul>
         <li><a href="History.html"><span>History</span></a></li>
         <li><a href="ManifactureProcesss.html"><span>Manifacture Process</span></a></li>
         <li class="last"><a href="#"><span>Products</span></a></li>
      </ul>
   </li>
   <li class="has-sub"><a href="#"><span>Gallery</span></a>
      <ul>
         <li><a href="TourToChina.html"><span>Trip To China</span></a></li>
         <li><a href="#"><span>Trip To Ceylon</span></a></li>
     <li class="last"><a href="TourToJapan.html"><span>Trip To Japan</span></a></li>
      </ul>
   </li>
   <li class="last"><a href="#"><span>Trip Time Line</span></a></li>
</ul>
</div>


 </div>
  <div class="leftnav">

    <p> The above links demonstrate a basic navigational structure using an unordered list styled with CSS. Use this as a starting point and modify the properties to produce your own unique look. If you require flyout menus, create your own using a Spry menu, a menu widget from Adobe's Exchange or a variety of other javascript or CSS solutions.</p>
      <p>If you would like the navigation along the top, simply move the ul to the top of the page and recreate the styling.</p>

  </div>
<div class="content">
<blockquote>
      <h1>Current<br />
        World Tea Tours
      </h1>
    </blockquote>
<h2>&nbsp;</h2>
    <table>
      <tr>
        <td  id="countries-of-tour"><h3>Country of Tour</h3></td>
        <td  id="time-and-places"><h3>Time&amp;places</h3></td>
        <td id="speacial-trip"><h3>special Trip of the country</h3></td>
        <td  id="childern-program"><h3>*children program</h3></td>
      </tr>
      <tr>
        <td align="center"></td>
        <td>May 2014<br />
- 1stTour: Beijing*<br />
- 2ndTour: Hainan Island</td>
        <td>July, 2013<br />
        -Kunming provice(south west of china)<br /></td>
        <td>The tour include special program for childern between 11-16years old( Chinese Tea cermony-Great wall-traditional chinese brush writing).</td>
      </tr>
      <tr>
        <td align="center"></td>
        <td>January 2015<br />
-1stTour: coloumbo<br />
- 2ndTour:candy</td>
        <td><p>October 10-13, 2014</p>
        <p>-Dehiwala-Mount Lavinia &amp; Nooraliya</p></td>
        <td>childern program in No Available</td>
      </tr>
      <tr>
        <td></td>
        <td><p>-June, 2013<br />
          -1stTour: Tokyo<br />
        - 2nd Tour:Osaka</p>
        <p>special offer </p></td>
        <td><p>September 2013</p>
        <p>-Kurashaki</p>
        <p>**speecial dicount for families member than 4 persons.</p></td>
        <td>The tour include special program for childern above 16 years old(short course on japanese languange-lean some dishes from japanese cusien-short course of japanese traditional instruments).</td>
      </tr>
    </table>
    <p>&nbsp;</p>

</div>


  <div id="footer">
    <p>This footer contains the declaration position:relative; to give Internet Explorer 6 hasLayout for the footer and cause it to clear correctly. If you're not required to support IE6, you may remove it.</p>
    <address>
      Address Content
    </address>

  </div>
</div>
</body>
</html>

Css code

@charset "UTF-8";
/* CSS Document */
#header {
	background: #ADB96E;
	align: left;
	float:left;
	padding:10px;
	display:inline-block;
    border: 0px solid #006600;
	width:800px;
}
#cssmenu {
	align: right;
	float:right;
	display: inline-block;
    border: 1px solid #006600;
    background: #006600;
}
.menu
{
float:left;
width:80px;
height:90px;
margin:20px;
}
#cssmenu > ul {
  padding: 1px 0;
  margin: 0px;
  list-style: none;
  width: 100%;
  height: 21px;
  border-top: 1px solid #FFFFFF;
  border-bottom: 1px solid #FFFFFF;
  font: normal 8pt verdana, arial, helvetica;
}
#cssmenu > ul li {
	margin: 0;
	padding: 0;
	display: block;
	float: left;
	position: relative;
	width: 120px;
}
#cssmenu > ul li a:link,
#cssmenu > ul li a:visited {
  padding: 4px 0;
  display: block;
  text-align: center;
  text-decoration: none;
  background: #006600;
  color: #ffffff;
  width: 120px;
  height: 13px;
}
#cssmenu > ul li:hover a,
#cssmenu > ul li a:hover,
#cssmenu > ul li a:active {
	padding: 4px 0;
	display: block;
	text-align: center;
	text-decoration: none;
	background: #339933;
	color: #ffffff;
	width: 120px;
	height: 13px;
	border-left: 1px solid #ffffff;
	border-right: 1px solid #ffffff;
}
#cssmenu > ul li ul {
  margin: 0;
  padding: 1px 1px 0;
  list-style: none;
  display: none;
  background: #ffffff;
  width: 120px;
  position: absolute;
  top: 21px;
  left: -1px;
  border: 1px solid #006600;
  border-top: none;
}
#cssmenu > ul li:hover ul {
  display: block;
}
#cssmenu > ul li ul li {
  clear: left;
  width: 120px;
}
#cssmenu > ul li ul li a:link,
#cssmenu > ul li ul li a:visited {
  clear: left;
  background: #006600;
  padding: 4px 0;
  width: 120px;
  border: none;
  border-bottom: 1px solid #ffffff;
  position: relative;
  z-index: 1000;
}
#cssmenu > ul li ul li:hover a,
#cssmenu > ul li ul li a:active,
#cssmenu > ul li ul li a:hover {
  clear: left;
  background: #339933;
  padding: 4px 0;
  width: 120px;
  border: none;
  border-bottom: 1px solid #ffffff;
  position: relative;
  z-index: 1000;
}
#cssmenu > ul li ul li ul.navigation-3 {
  display: none;
  margin: 0;
  padding: 0;
  list-style: none;
  position: absolute;
  left: 120px;
  top: -2px;
  padding: 1px 1px 0 1px;
  border: 1px solid #006600;
  border-left: 1px solid #006600;
  background: #ffffff;
  z-index: 900;
}
#cssmenu > ul li ul li:hover ul.navigation-3 {
  display: block;
}
#cssmenu > ul li ul li ul.navigation-3 li a:link,
#cssmenu > ul li ul li ul.navigation-3 li a:visited {
  background: #006600;
}
#cssmenu > ul li ul li ul.navigation-3 li:hover a,
#cssmenu > ul li ul li ul.navigation-3 li a:hover,
#cssmenu > ul li ul li ul.navigation-3 li a:active {
  background: #339933;
}
body {
	font: 100%/1.4 Verdana, Arial, Helvetica, sans-serif;
	background: #78c679;
	margin: 0;
	padding: 0;
	color: #000;
}
.container {
	width: 820px;
	background:#addd8e;
	margin: 0 auto;

}
#logo{
	width:178px;
	height:150px;
	float:left;
}

.leftnav {
	float: left;
	width: 180px;
	background: #EADCAE;
	height:800px;
	padding:5px;
	
	

	
}
.content {
	padding: 10px;
	width: 610px;
	float: left;
	background:#addd8e;
	
}
#footer {
	padding: 10px 0;
	background: #CCC49F;
	 position: relative;
	clear: both;
	
}

You’re missing an equals sign – it should be class=“thumbnail”. All four error messages relate to the same mistake.

Thank you sooo much stevie