diff --git a/static/sass/base/_extends.scss b/static/sass/base/_extends.scss
index 4626afc2fa..880f6cd3ca 100644
--- a/static/sass/base/_extends.scss
+++ b/static/sass/base/_extends.scss
@@ -16,6 +16,11 @@
   div.table-wrapper {
     display: table;
     width: flex-grid(12);
+    overflow: hidden;
+
+    @media screen and (min-width: 1400px) {
+      @include border-radius(4px);
+    }
   }
 }
 
@@ -83,6 +88,7 @@ h1.top-header {
   padding: lh();
   vertical-align: top;
   width: flex-grid(9) + flex-gutter();
+  overflow: hidden;
 
   @media print {
     @include box-shadow(none);
@@ -196,7 +202,8 @@ h1.top-header {
   @extend .clearfix;
   background: $cream;
   border-bottom: 1px solid darken($cream, 10%);
-  @include box-shadow(inset 0 1px 0 #fff, inset 1px 0 0 #fff);
+  border-top: 1px solid #fff;
+  // @include box-shadow(inset 0 1px 0 #fff, inset 1px 0 0 #fff);
   font-size: 12px;
   height:46px;
   line-height: 46px;
diff --git a/static/sass/courseware/_courseware.scss b/static/sass/courseware/_courseware.scss
index 520440c234..cf6b10235c 100644
--- a/static/sass/courseware/_courseware.scss
+++ b/static/sass/courseware/_courseware.scss
@@ -17,9 +17,7 @@ div.course-wrapper {
 
   section.course-content {
     @extend .content;
-    overflow: hidden;
-    @include border-top-right-radius(4px);
-    @include border-bottom-right-radius(4px);
+    @include border-radius(0 4px 4px 0);
 
     h1 {
       margin: 0 0 lh();
@@ -186,6 +184,7 @@ div.course-wrapper {
             margin-top: 8px;
             text-align: right;
             padding-right: 0;
+            border-right: 0;
           }
         }
 
diff --git a/static/sass/courseware/_sequence-nav.scss b/static/sass/courseware/_sequence-nav.scss
index 0e541e7f07..ac0f110f63 100644
--- a/static/sass/courseware/_sequence-nav.scss
+++ b/static/sass/courseware/_sequence-nav.scss
@@ -222,7 +222,7 @@ nav.sequence-nav {
       &.next {
         a {
           background-image: url('../images/sequence-nav/next-icon.png');
-          @include border-top-right-radius(4px);
+          // @include border-top-right-radius(4px);
 
           &:hover {
             background-color: none;
@@ -237,6 +237,13 @@ nav.sequence-nav {
 section.course-content {
   position: relative;
 
+  ol.vert-mod {
+    nav.sequence-nav {
+      margin-top: -15px;
+      @include border-radius(0);
+    }
+  }
+
   nav.sequence-bottom {
     margin: lh(2) 0 0;
     text-align: center;
diff --git a/static/sass/layout/_layout.scss b/static/sass/layout/_layout.scss
index 1b476a30db..7f4645dd5a 100644
--- a/static/sass/layout/_layout.scss
+++ b/static/sass/layout/_layout.scss
@@ -17,7 +17,6 @@ html {
       @include box-shadow(0 0 4px #dfdfdf);
       @include box-sizing(border-box);
       margin-top: 3px;
-      overflow: hidden;
 
       @media print {
         border-bottom: 0;
@@ -27,6 +26,7 @@ html {
       @media screen and (min-width: 1400px) {
         @include border-radius(4px);
         margin-top: lh(.5);
+        overflow: hidden;
       }
     }
 
diff --git a/static/sass/wiki/_wiki.scss b/static/sass/wiki/_wiki.scss
index 179902223b..9c878ad263 100644
--- a/static/sass/wiki/_wiki.scss
+++ b/static/sass/wiki/_wiki.scss
@@ -5,12 +5,14 @@ div.wiki-wrapper {
   section.wiki-body {
     @extend .clearfix;
     @extend .content;
+    @include border-radius(0 4px 4px 0);
     position: relative;
 
     header {
       @extend .topbar;
-      @include box-shadow(inset 0 1px 0 white);
+      @include border-radius(0 4px 0 0);
       height:46px;
+      overflow: hidden;
 
       &:empty {
         border-bottom: 0;
diff --git a/templates/simplewiki_instructions.html b/templates/simplewiki_instructions.html
index 58ef12a47c..449b92b004 100644
--- a/templates/simplewiki_instructions.html
+++ b/templates/simplewiki_instructions.html
@@ -1,12 +1,12 @@
 <div id="wiki_edit_instructions">
-  This wiki uses <strong>Markdown</strong> for styling. There are several <a href="http://daringfireball.net/projects/markdown/basics">useful</a> <a href="http://greg.vario.us/doc/markdown.txt">guides</a> <a href="http://www.lowendtalk.com/discussion/6/miniature-markdown-guide">online</a>.
-  <br>
-  <br>MITx Additions:
+  This wiki uses <strong>Markdown</strong> for styling. 
+  <h2> MITx Additions: </h2>
   <p class="markdown-example">circuit-schematic:</p>
   <p class="markdown-example"><span>$</span>LaTeX Math Expression<span>$</span></p>
   To create a new wiki article, create a link to it. Clicking the link gives you the creation page.  
   <p class="markdown-example">[Article Name](wiki:ArticleName)</p>
-  Other useful examples:<br>
+
+  <h2>Useful examples: </h2>
   <p class="markdown-example">[Link](http://google.com)</p>
   <p class="markdown-example">Huge Header
   <br>====</p>
@@ -19,4 +19,6 @@
   <br>&nbsp&nbsp- Sub Item 2</p>
   <p class="markdown-example">1. Ordered
   <br>2. List</p>
+
+  <p>Need more help? There are several <a href="http://daringfireball.net/projects/markdown/basics">useful</a> <a href="http://greg.vario.us/doc/markdown.txt">guides</a> <a href="http://www.lowendtalk.com/discussion/6/miniature-markdown-guide">online</a>.</p>
 </div>