diff --git a/cours/cours_prof.cls b/cours/cours_prof.cls
index 2611875..58e3f48 100644
--- a/cours/cours_prof.cls
+++ b/cours/cours_prof.cls
@@ -70,17 +70,7 @@
     innerbottommargin=2em,%
 }
 
-\mdfdefinestyle{framed}{%
-    linecolor=black,linewidth=1pt,%
-    leftmargin=0,rightmargin=0,%
-    innertopmargin=1em,innerbottommargin=1em,%
-    innerleftmargin=5pt,innerrightmargin=5pt,%
-    skipabove=0,skipbelow=0,%
-    frametitlerule=false,%
-    frametitlebackgroundcolor=white!0,%innertopmargin=\topskip,%
-    nobreak=true,%
-    xcolor,%
-}
+
 \mdfdefinestyle{dash_framed}{%
     linecolor=white,linewidth=1pt,%
     tikzsetting={draw=black,dashed,line width=1pt},%
@@ -142,28 +132,16 @@
     singleextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
                 node[symbol] { \faicon{\faPencil} };},%
 }
-\mdfdefinestyle{todo}{%
-    linecolor=white,linewidth=1pt,%
-    tikzsetting={draw=black,line width=1pt},%
+\mdfdefinestyle{box}{%
+    linecolor=black,linewidth=1pt,%
     leftmargin=0,rightmargin=0,%
     innertopmargin=1em,innerbottommargin=1em,%
-    innerleftmargin=1em,innerrightmargin=5pt,%
+    innerleftmargin=5pt,innerrightmargin=5pt,%
     skipabove=0,skipbelow=0,%
     frametitlerule=false,%
     frametitlebackgroundcolor=white!0,%innertopmargin=\topskip,%
     nobreak=true,%
     xcolor,%
-    % hidealllines=true, topline=true, bottomline=true,%
-    shadow=true,%
-    background=gray!40,%
-    firstextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
-                node[symbol] { \faicon{\faFileTextO} };},%
-    secondextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
-                node[symbol] { \faicon{\faFileTextO} };},%
-    middleextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
-                node[symbol] { \faicon{\faFileTextO} };},%
-    singleextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
-                node[symbol] { \faicon{\faFileTextO} };},%
 }
 \mdfdefinestyle{quot}{%
     linecolor=white,linewidth=1pt,%
@@ -192,6 +170,29 @@
                 \path let \p1=(P), \p2=(O) in ($(\x1,.4)+(0,\y2)$)
                 node[symbol] { \faicon{\faQuoteRight} };},%
 }
+\mdfdefinestyle{todo}{%
+    linecolor=white,linewidth=1pt,%
+    tikzsetting={draw=black,line width=1pt},%
+    leftmargin=0,rightmargin=0,%
+    innertopmargin=1em,innerbottommargin=1em,%
+    innerleftmargin=1em,innerrightmargin=5pt,%
+    skipabove=0,skipbelow=0,%
+    frametitlerule=false,%
+    frametitlebackgroundcolor=white!0,%innertopmargin=\topskip,%
+    nobreak=true,%
+    xcolor,%
+    % hidealllines=true, topline=true, bottomline=true,%
+    shadow=true,%
+    background=gray!40,%
+    firstextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
+                node[symbol] { \faicon{\faFileTextO} };},%
+    secondextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
+                node[symbol] { \faicon{\faFileTextO} };},%
+    middleextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
+                node[symbol] { \faicon{\faFileTextO} };},%
+    singleextra={\path let \p1=(P), \p2=(O) in ($(\x2,-.4)+1.0*(0,\y1)$)
+                node[symbol] { \faicon{\faFileTextO} };},%
+}
 \mdfdefinestyle{warn}{%
     linecolor=black,linewidth=1pt,%
     leftmargin=0,rightmargin=0,%
@@ -214,12 +215,12 @@
 }
 
 \mdtheorem[style=cmpl, theoremseparator={ - }]{déf}{Définition}
-\mdtheorem[style=framed, theoremseparator={ - }]{thm}{Théorème}
-\mdtheorem[style=framed]{ppt}{Propriété}
-\mdtheorem[style=framed]{pre}{Preuve}
+\mdtheorem[style=cmpl, theoremseparator={ - }]{thm}{Théorème}
+\mdtheorem[style=cmpl]{ppt}{Propriété}
+\mdtheorem[style=box]{pre}{Preuve}
 \mdtheorem[style=quot]{voc}{Vocabulaire}
 \mdtheorem[style=warn]{rmq}{Remarque}
-\mdtheorem[style=framed]{exe}{Exemple}
+\mdtheorem[style=box]{exe}{Exemple}
 \mdtheorem[style=todo]{exo}{Exercice}
 \mdtheorem[style=todo, theoremseparator={ - }]{app}{Application}
 \mdtheorem[style=todo, theoremseparator={ - }]{met}{Méthode}