Accessibility fixes:

	- changed buttons to spans since not being used in forms
	- added aria roles to html elements
	- changed low contrast colors

Change-Id: I56e784b226baa7f9b24346446a0a023fcea633d4
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/base/colors.scss b/app/common/styles/base/colors.scss
index abf5424..c45fd2e 100644
--- a/app/common/styles/base/colors.scss
+++ b/app/common/styles/base/colors.scss
@@ -45,7 +45,7 @@
 // Status colors
 $error-color: #e62425;
 $status-ok: #34bc6e;
-$status-ok-light: #bcefce;
+$status-ok-light: #cceedf;
 $status-warn: #ffb000;
 
 // Alerts
@@ -77,7 +77,7 @@
 // Threshold graphs
 $thresh-critical: $error-color;
 $thresh-warning: #ffb001;
-$thresh-normal: $lightgrey;
+$thresh-normal: #cceedf;
 
 //Inventory
 $active: #c6b6f5;
diff --git a/app/common/styles/components/form-elements.scss b/app/common/styles/components/form-elements.scss
index 767d76f..5c87a35 100644
--- a/app/common/styles/components/form-elements.scss
+++ b/app/common/styles/components/form-elements.scss
@@ -112,6 +112,7 @@
   height: 20px;
   background: $white;
   border: 1px solid $lightbg__grey;
+  font-size: 0;
 }
 
 /* Hover and focus states */
diff --git a/app/common/styles/directives/app-navigation.scss b/app/common/styles/directives/app-navigation.scss
index 997ab7c..f91457c 100644
--- a/app/common/styles/directives/app-navigation.scss
+++ b/app/common/styles/directives/app-navigation.scss
@@ -51,7 +51,7 @@
   .nav-icon {
     @include navIcons;
   }
-  .button, button, a {
+  .button, a, .nav__btn {
     background: transparent;
     height: auto;
     border: 0;
@@ -84,6 +84,7 @@
       padding: 1em;
       border-radius: 0;
       border-bottom: 1px solid $lightgrey;
+      cursor: pointer;
       .nav__icon-help__outer {
         stroke: $black;
       }
diff --git a/app/common/styles/elements/inline-confirm.scss b/app/common/styles/elements/inline-confirm.scss
index b01c576..c65e5de 100644
--- a/app/common/styles/elements/inline-confirm.scss
+++ b/app/common/styles/elements/inline-confirm.scss
@@ -28,10 +28,14 @@
     margin: 0 10px;
     border-radius: 4px;
     &:focus,
-    &:hover {
+    &.default {
       background: $primebtn__bg;
       border: 2px solid $primebtn__bg;
     }
+    &:hover {
+      background: darken($primebtn__bg, 10%);
+      border: 2px solid $primebtn__bg;
+    }
   }
   @media (min-width: 900px) {
     position: absolute;