title: Table borders are not visible inside expandable list content
body: <p>I just started learning HTML and copied a code to create an expandable-collapsible list. In the list content, I have created a table, but the borders of that table are not visible when I open the web page. The same table displays fine with border when I run it on a webpage without the list. Please help me solve the problem. The code is shown below:</p>
  
  <pre><code>&lt;html&gt;
      &lt;head&gt;
          &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
          &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.95.3/js/materialize.min.js"&gt;&lt;/script&gt;
          &lt;link href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.95.3/css/materialize.min.css" rel="stylesheet"/&gt;
      &lt;/head&gt;  
      &lt;body&gt;
          &lt;div&gt;
              &lt;ul class="collapsible" data-collapsible="accordion"&gt;
                  &lt;li&gt;
                      &lt;div class="collapsible-header"&gt;&lt;i class="mdi-navigation-chevron-right"&gt;&lt;/i&gt;&lt;h5&gt; &lt;a&gt;Leader &lt;/a&gt;&lt;/h5&gt;&lt;/div&gt;
                      &lt;div class="collapsible-body"&gt;
  
                          Sample Line
  
                          Course Description
                          &lt;p&gt;The best brains compete to get an admission to this two-year legendary course offered by us. The course, unmatched in its rigour and precision, raises you to the very zenith of your preparation. The stimulating atmosphere of the institute, small batches (yes-we believe in quality) and one to one interaction with the instructor ensure that every rough edge is smoothened, every small doubt is cleared. More importantly, we train you to think analytically, we give you a systematic approach to problem solving . If you think you are bright, if you think you are capable, if you think that you can make it to the top, this course is precisely for you.
                          &lt;/p&gt;
  
  
                          &lt;table
  style="text-align: left; width: 718px; height: 139px; margin-left: auto; margin-right: auto;"
  border=10 BORDERCOLOR=RED cellpadding="2" cellspacing="2"&gt;
                              &lt;tbody&gt;
                                  &lt;tr&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(204, 204, 204); font-weight: bold;"&gt;Mode
  of Admission&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td colspan="2" rowspan="1"
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;Through
  BOOST &lt;br&gt;
                                      &lt;/td&gt;
                                  &lt;/tr&gt;
                                  &lt;tr&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(204, 204, 204); font-weight: bold;"&gt;Phases&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;Phase
  1&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;Phase
  2&lt;br&gt;
                                      &lt;/td&gt;
                                  &lt;/tr&gt;
                                  &lt;tr&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(204, 204, 204); font-weight: bold;"&gt;Commencement
  Date&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;7
  April 2016&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;28
  April 2016&lt;br&gt;
                                      &lt;/td&gt;
                                  &lt;/tr&gt;
                                  &lt;tr&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(204, 204, 204); font-weight: bold;"&gt;Last
  of Registration&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;5
  April 2016&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;26
  April 2016&lt;br&gt;
                                      &lt;/td&gt;
                                  &lt;/tr&gt;
                                  &lt;tr&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(204, 204, 204); font-weight: bold;"&gt;Last
  Date of Refund&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;20
  April 2016&lt;br&gt;
                                      &lt;/td&gt;
                                      &lt;td
  style="vertical-align: top; text-align: center; background-color: rgb(255, 255, 51);"&gt;10
  May 2016&lt;br&gt;
                                      &lt;/td&gt;
                                  &lt;/tr&gt;
                              &lt;/tbody&gt;
                          &lt;/table&gt;
                          &lt;br&gt;
                          &lt;br&gt;
                      &lt;/div&gt;
                  &lt;/li&gt;
              &lt;/ul&gt;
          &lt;/div&gt;    
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>