html tabloda hücre birleştirme

 
  <html lang=""en""> 
      <head>     
          <meta content=""text/html; charset=utf-8"" http-equiv=""Content-Type""> 
          <title> 
              Upcoming topics 
          </title> 
          <style type=""text/css""> 
              HTML{background-color: #FFFFFF;} 
              .courses-table{font-size: 15px; padding: 10px; border-collapse: collapse; border-spacing: 0;} 
              .courses-table .description{color: #505050;} 
              .courses-table td{border: 2px solid #6B9852; background-color: #F3F3F3; padding: 0 12px;} 
              .courses-table th{border: 2px solid #000000; color: #FFFFFF;text-align: left; padding: 0 12px;} 
              .green{background-color: #6B9852;} 
          </style> 
      </head> 
      <body> 
          <table class=""courses-table""> 
              <thead> 
                  <tr> 
                      <th class=""green"">DÜZELDİ BİLDİRİMİ</th> 
                      <th class=""green""></th> 
                  </tr> 
              </thead> 
              <tbody> 
                  <tr> 
                      <td class=""description""> NO</td><td>" + textBox1.Text + @"</td> 
                  </tr> 
                  <tr> 
                      <td class=""description"">SEHIR</td><td>" + textBox4.Text + @"</td> 
                  </tr> 
                  <tr> 
                      <td class=""description"">DURUMU</td><td>" + textBox5.Text + @"</td> 
                  </tr> 
              </tbody> 
          </table> 
      </body> 
  </html>