fix some documentation issues

doc/QuickStartGuide.dox

@@ -24,6 +24,7 @@ namespace Eigen {
   - \ref TutorialCoreTriangularMatrix
   - \ref TutorialLazyEvaluation
 \n
+
 <hr>
 
 <a href="#" class="top">top</a>\section TutorialCoreGettingStarted Getting started
@@ -256,7 +257,6 @@ scalar product</td><td>\code
 mat3 = mat1 * s1;   mat3 = s1 * mat1;   mat3 *= s1;
 mat3 = mat1 / s1;   mat3 /= s1;\endcode
 </td></tr>
-<tr><td>
 </table>
 
 In Eigen, only traditional mathematical operators can be used right away.
@@ -424,11 +424,13 @@ Read-write access to sub-matrices:</td><td></td><td></td></tr>
 <tr><td>\code
 mat4x4.minor(i,j) = mat3x3;
 mat3x3 = mat4x4.minor(i,j);\endcode
-</td><td>
+</td><td></td><td>
 \link MatrixBase::minor() minor \endlink (read-write)</td>
 </tr>
 </table>
 
+
+
 <a href="#" class="top">top</a>\section TutorialCoreDiagonalMatrices Diagonal matrices
 
 <table class="tutorial_code">

doc/TutorialLinearAlgebra.dox

@@ -2,7 +2,7 @@
 namespace Eigen {
 
 /** \page TutorialAdvancedLinearAlgebra Tutorial 3/3 - Advanced linear algebra
-    \in group Tutorial
+    \ingroup Tutorial
 
 <div class="eimainmenu">\ref index "Overview"
   | \ref TutorialCore "Core features"

doc/eigendoxy.css

@@ -479,6 +479,7 @@ th {
 
 
 TABLE.noborder {
+  border-collapse: separate;
   border-bottom-style : none;
   border-left-style   : none;
   border-right-style  : none;
@@ -499,16 +500,22 @@ TABLE.noborder TD {
 
 table.tutorial_code {
   border-collapse: collapse;
-  empty-cells : show;
+  border-width: 1px;
+  border-style: dotted;
+  border-color: #888888;
+  empty-cells : hide;
   margin: 4pt 0 0 0;
   padding: 0 0 0 0;
 }
 table.tutorial_code tr {
-   border-style: none dashed none dashed;
+   border-style: dashed;
    border-width: 1px;
+   border-color: #888888;
 }
 table.tutorial_code td {
-  border-style: dashed none dashed none;
+  border-style: none dotted none dotted;
+  border-width: 0 1px 0 1px;
+  border-color: transparent;
   empty-cells : show;
   margin: 0 0 0 0;
   padding: 2pt 5pt 2pt 5pt;