diff --git a/IPython/html/static/base/less/variables.less b/IPython/html/static/base/less/variables.less
index e28dbf1..0eeb9bb 100644
--- a/IPython/html/static/base/less/variables.less
+++ b/IPython/html/static/base/less/variables.less
@@ -10,6 +10,7 @@
 @modal-inner-padding: 15px;
 @grid-float-breakpoint: 540px;
 @logo_height: 28px;
+@border-radius-base: 2px;
 
 // Disable modal slide-in from top animation.
 .modal {
diff --git a/IPython/html/static/terminal/less/terminal.less b/IPython/html/static/terminal/less/terminal.less
index 78cf8d1..69ae1be 100644
--- a/IPython/html/static/terminal/less/terminal.less
+++ b/IPython/html/static/terminal/less/terminal.less
@@ -1,17 +1,14 @@
 .terminal {
   float: left;
-  border: black solid 5px;
   font-family: monospace;
-  font-size: 11px;
   color: white;
   background: black;
-  border-radius: 2px;
+  border-radius: @border-radius-base;
   box-shadow: 0px 4px 11px 0px gray;
-  border: 0px;
   padding: @code_padding;
 
   &, dummy-screen {
-    line-height: @code_line_height;
+    line-height: 1em;
     font-size: @notebook_font_size;
   }
 }
diff --git a/IPython/html/static/tree/less/tree.less b/IPython/html/static/tree/less/tree.less
index 8ed509a..7cd827a 100644
--- a/IPython/html/static/tree/less/tree.less
+++ b/IPython/html/static/tree/less/tree.less
@@ -57,7 +57,7 @@ ul.breadcrumb {
   margin-top: @dashboard_tb_pad;
   margin-bottom: 5*@dashboard_tb_pad;
   border: 1px solid @border_color;
-  border-radius: 4px;
+  border-radius: @border-radius-base;
 }
 
 .list_container > div {