Changed the colours of the ballot grid so they are using the same palette as the rest of the site.

 - Legacy-Id: 9453

Author: levkowetz

static/css/ietf.css

@@ -118,18 +118,16 @@ label.required:after { content: "\2217"; color: #a94442; font-weight: bold; }
 
 /* Styles needed for the ballot table */
 .position-discuss,
-.position-block    { background-color: #d9534f; }
-.position-yes      { background-color: #5cb85c; }
-.position-noobj    { background-color: #5bc0de; }
-.position-abstain  { background-color: #ec971f; }
+.position-block    { background-color: #d4584d; } /* @alert-danger-bg */
+.position-yes      { background-color: #67F72B; } /* @brand-success */
+.position-noobj    { background-color: #D1F7C1; } /* lighten(@brand-success) */
+.position-abstain  { background-color: #f6d73c; } /* darken(@brand-info) */
 .position-recuse   { background-color: #808080; }
 .position-norecord { background-color: inherit; }
 .ballot-icon table td { border: 1px solid #ddd; height: 10px; width: 8px; }
 .ballot-icon table .my { border: 2px solid #000;}
 .ballot-icon table { margin: 0 0 10px 10px; }
 
-/* Adjust the z-index of the ballot-icon tooltip so it doesn't obscure pop-over content */
-.ballot-icon:after { z-index: 1035; }
 
 /* Style the right-hand page navigation affix used on some pages. */