accessibility: controls as buttons, not divs

1 files changed, 14 insertions, 11 deletions

diff --git a/css/reveal.css b/css/reveal.css
index 258e975..a83c155 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -156,58 +156,61 @@ body {
   bottom: 10px;
   -webkit-user-select: none; }
 
-.reveal .controls div {
+.reveal .controls button {
+  padding: 0;
   position: absolute;
   opacity: 0.05;
   width: 0;
   height: 0;
+  background-color: transparent;
   border: 12px solid transparent;
   -webkit-transform: scale(0.9999);
       -ms-transform: scale(0.9999);
           transform: scale(0.9999);
   -webkit-transition: all 0.2s ease;
           transition: all 0.2s ease;
+  -webkit-appearance: none;
   -webkit-tap-highlight-color: rgba(0, 0, 0, 0); }
 
-.reveal .controls div.enabled {
+.reveal .controls button.enabled {
   opacity: 0.7;
   cursor: pointer; }
 
-.reveal .controls div.enabled:active {
+.reveal .controls button.enabled:active {
   margin-top: 1px; }
 
-.reveal .controls div.navigate-left {
+.reveal .controls button.navigate-left {
   top: 42px;
   border-right-width: 22px;
   border-right-color: #000; }
 
-.reveal .controls div.navigate-left.fragmented {
+.reveal .controls button.navigate-left.fragmented {
   opacity: 0.3; }
 
-.reveal .controls div.navigate-right {
+.reveal .controls button.navigate-right {
   left: 74px;
   top: 42px;
   border-left-width: 22px;
   border-left-color: #000; }
 
-.reveal .controls div.navigate-right.fragmented {
+.reveal .controls button.navigate-right.fragmented {
   opacity: 0.3; }
 
-.reveal .controls div.navigate-up {
+.reveal .controls button.navigate-up {
   left: 42px;
   border-bottom-width: 22px;
   border-bottom-color: #000; }
 
-.reveal .controls div.navigate-up.fragmented {
+.reveal .controls button.navigate-up.fragmented {
   opacity: 0.3; }
 
-.reveal .controls div.navigate-down {
+.reveal .controls button.navigate-down {
   left: 42px;
   top: 74px;
   border-top-width: 22px;
   border-top-color: #000; }
 
-.reveal .controls div.navigate-down.fragmented {
+.reveal .controls button.navigate-down.fragmented {
   opacity: 0.3; }
 
 /*********************************************