--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Slides/graph.sty	Mon Feb 15 21:48:57 2016 +0100
@@ -0,0 +1,16 @@
+\usepackage{tikz}
+\usepackage{pgf}
+\usetikzlibrary{positioning}
+\usetikzlibrary{calc}
+\usetikzlibrary{fit}
+\usepackage{graphicx} 
+\usepackage{pgfplots}
+
+
+\newenvironment{bubble}[1][]{%
+\addtolength{\leftmargini}{4mm}%
+\begin{tikzpicture}[baseline=(current bounding box.north)]%
+\draw (0,0) node[inner sep=2mm,fill=cream,ultra thick,draw=red,rounded corners=2mm]% 
+\bgroup\begin{minipage}{#1}\raggedright{}}
+{\end{minipage}\egroup;%
+\end{tikzpicture}\bigskip}