diff --git a/2016-09-17-lecture01.md b/2016-09-17-lecture01.md
index d1d5e13..4ff57e0 100644
--- a/2016-09-17-lecture01.md
+++ b/2016-09-17-lecture01.md
@@ -24,7 +24,6 @@ Just send me an email with the following subject line and body:
 permission code request biol 125
 ```
 
-
 ```txt
 ID#: 
 NAME: *First Middle Last*
@@ -43,7 +42,7 @@ REASON YOU CANNOT ENROLL:
 * Zoom object: `alt/option–click`
 * Print: `...lecture.html?print-pdf`
 
-
+Recommend browser is Chrome on a laptop/PC. Menu may not work properly in Safari and iOS. Other features (e.g. Zoom object) may not work on tablet/touch screen devices.
 
 ---
 
@@ -313,13 +312,25 @@ Thus for research pertaining to the structure and function of the mammalian brai
 
 Higher mammals are used to study more complex brain functions.
 
-<div><figure style="float:left; display:table;"><img src="figs/1f412_3fc8278.svg" height="200px"><figcaption style="display:table-caption; caption-side: bottom;">Cats– visual system function, locomotion</figcaption></figure></div>
+<div><img src="figs/1f412_3fc8278.svg" height="200px"><figcaption>Cats– visual system function, locomotion</figcaption></div>
 
-<div><figure style="float:left; display:table;"><img src="figs/1f412_f738dec.svg" height="200px"><figcaption style="display:table-caption; caption-side: bottom;">Non-human primates– attention, decision making, vision, brain machine interfaces</figcaption></figure></div>
+<div><img src="figs/1f412_f738dec.svg" height="200px">
+<figcaption>
+Non-human primates– attention, decision   
+making, vision, brain machine interfaces  
+</figcaption></div>
+
+<div><iframe src="https://www.youtube.com/embed/L2O58QfObus" width="420" height="315"></iframe><figcaption>Rhesus monkey mind controlled wheelchair</figcaption></div>
+
+
+<!-- 
+<div style="float:left;"><figure style="display:inline-table;"><img src="figs/1f412_3fc8278.svg" height="200px"><figcaption style="display:table-caption; caption-side:bottom;">Cats– visual system function, locomotion</figcaption></figure></div>
+
+<div style="float:left;"><figure style="display:inline-table;"><img src="figs/1f412_f738dec.svg" height="200px"><figcaption style="display:table-caption; caption-side:bottom;">Non-human primates– attention, decision making, vision, brain machine interfaces</figcaption></figure></div>
 
 <div style="width:430px; float:left;"><iframe src="https://www.youtube.com/embed/L2O58QfObus" width="420" height="315"></iframe><figcaption>Rhesus monkey mind controlled wheelchair</figcaption></div>
 
-
+ -->
 Note:
 
 Research with cats was critical for work from the 1950s to 1980s that allowed neuroscientist to learn how visual signals are processed in the highest circuits of the mammalian brain.
@@ -389,9 +400,9 @@ Only after fundamental and rigorous work by these two scientists, C. Golgi and S
 
 Golgi staining: potassium chromate and silver nitrate (1873)
 
-<div><figure style="float:left; display:table;"><img src="figs/camillo_golgi_hippocampus_40b7a67.jpg" height="300px"><figcaption style="display:table-caption; caption-side: bottom;">Golgi's drawing of the hippocampus impregnated by his stain (from Golgi's Opera Omnia).</figcaption></div>
+<div><img src="figs/camillo_golgi_hippocampus_40b7a67.jpg" height="300px"><figcaption>Golgi's drawing of the hippocampus impregnated by his stain (from Golgi's Opera Omnia).</figcaption></div>
 
-<div><figure style="float:left; display:table;"><img src="figs/golgi_nobel_lecture_fig9_eb014b5.png" height="300px"><figcaption style="display:table-caption; caption-side: bottom;">Golgi's drawing of hippocampal dentate gyrus, fig. 9 from Nobel lecture</figcaption></div>
+<div><img src="figs/golgi_nobel_lecture_fig9_eb014b5.png" height="300px"><figcaption>Golgi's drawing of hippocampal dentate gyrus, fig. 9 from Nobel lecture</figcaption></div>
 
 
 Note:
@@ -456,7 +467,7 @@ Pavia, Italy
 
 </figcaption></div>
 
-<div style="width:600px; float:left;"><img src="figs/SantiagoRamónyCajal_dd682a4.jpg" height="200px"><figcaption class="big">
+<div style="width:600px; float:left;"><img src="figs/SantiagoRamonyCajal_dd682a4.jpg" height="200px"><figcaption class="big">
 
 Santiago Ramón y Cajal  
 Madrid University