Update Biopython lesson

README.md

@@ -33,6 +33,8 @@ The top-level directory contains slides for the following lessons.
 4. [More Python Goodness](http://nbviewer.ipython.org/urls/raw.github.com/LUMC/programming-course/master/more-python.ipynb)
 5. [Working with NumPy arrays](http://nbviewer.ipython.org/urls/raw.github.com/LUMC/programming-course/master/numpy.ipynb)
 6. [Plotting with matplotlib](http://nbviewer.ipython.org/urls/raw.github.com/LUMC/programming-course/master/matplotlib.ipynb)
+7. [Object-oriented programming](http://nbviewer.ipython.org/urls/raw.github.com/LUMC/programming-course/master/classes.ipynb)
+8. [A sip of Biopython](http://nbviewer.ipython.org/urls/raw.github.com/LUMC/programming-course/master/biopython.ipynb)
 
 Note: These links are to one-page renderings on [IPython Notebook Viewer](http://nbviewer.ipython.org/), see below how to get the real slideshows.
 

styles/notebook.css

@@ -31,14 +31,14 @@ div.text_cell_render{
 .prompt{
     display: None;
 }
-.text_cell_render h5 {
+.text_cell_render .exercise {
     font-weight: 300;
-    font-size: 22pt;
+    /*font-size: 22pt;*/
     color: #4057A1;
     font-style: italic;
-    margin-bottom: .5em;
+    /*margin-bottom: .5em;
     margin-top: 0.5em;
-    display: block;
+    display: block;*/
 }
 
 .warning{

styles/notebook.css.small

@@ -31,14 +31,14 @@ div.text_cell_render{
 .prompt{
     display: None;
 }
-.text_cell_render h5 {
+.text_cell_render .exercise {
     font-weight: 300;
-    font-size: 22pt;
+    /*font-size: 22pt;*/
     color: #4057A1;
     font-style: italic;
-    margin-bottom: .5em;
+    /*margin-bottom: .5em;
     margin-top: 0.5em;
-    display: block;
+    display: block;*/
 }
 
 .warning{