A couple of glitch fixes

Author: philwareham

dist/textpattern/jquery-ui.css

@@ -1145,7 +1145,8 @@ input.ui-button.ui-icon-notext .ui-icon {
 }
 
 [dir="rtl"] .ui-datepicker-prev span {
-  background-position: -48px -192px;
+  -webkit-transform: rotate(180deg);
+          transform: rotate(180deg);
 }
 
 [dir="rtl"] .ui-datepicker-next {
@@ -1154,7 +1155,8 @@ input.ui-button.ui-icon-notext .ui-icon {
 }
 
 [dir="rtl"] .ui-datepicker-next span {
-  background-position: -80px -192px;
+  -webkit-transform: rotate(180deg);
+          transform: rotate(180deg);
 }
 
 [dir="rtl"] .ui-datepicker-buttonpane {
@@ -1681,7 +1683,6 @@ input.ui-button.ui-icon-notext .ui-icon {
   display: block;
   position: absolute;
   border: 0;
-  background-position: 0 0;
   font-size: 0.7em;
   z-index: 1;
 }
@@ -1855,6 +1856,7 @@ input.ui-button.ui-icon-notext .ui-icon {
 }
 
 .ui-tabs .ui-tabs-nav {
+  padding: 0;
   background: none;
 }
 

dist/textpattern/jquery-ui.min.css

@@ -275,7 +275,7 @@
         left: auto;
 
         span {
-            background-position: -48px -192px;
+            transform: rotate(180deg);
         }
     }
 
@@ -284,7 +284,7 @@
         left: 0.2em;
 
         span {
-            background-position: -80px -192px;
+            transform: rotate(180deg);
         }
     }
 

scss/modules/_datepicker.scss

@@ -0,0 +1,92 @@
+/* Multi-select menu
+   ========================================================================== */
+
+/**
+ * jQuery UI MultiSelect Widget (a jQuery UI plugin)
+ *
+ * Some classes and HTML elements generally added via JavaScript, more info -
+ * https://github.com/ehynds/jquery-ui-multiselect-widget
+ *
+ * Example HTML:
+ *
+ * TODO
+ */
+
+.ui-multiselect {
+    padding: 2px 0 2px 4px;
+    text-align: left;
+
+    span.ui-icon {
+        float: right;
+    }
+
+}
+
+.ui-multiselect-single .ui-multiselect-checkboxes {
+    input {
+        position: absolute !important;
+        top: auto !important;
+        left: -9999px;
+    }
+
+    label {
+        padding: 5px !important;
+    }
+}
+
+.ui-multiselect-menu {
+    display: none;
+    position: absolute;
+    padding: 3px;
+    text-align: left;
+}
+
+.ui-multiselect-checkboxes {
+    position: relative;
+    overflow-y: auto;
+
+    label {
+        display: block;
+        padding: 3px 1px;
+        border: 1px solid transparent;
+        cursor: default;
+
+        input {
+            position: relative;
+            top: 1px;
+        }
+
+        img {
+            height: 30px;
+            padding-right: 3px;
+            vertical-align: middle;
+        }
+    }
+}
+
+.ui-multiselect-checkboxes li {
+    padding-right: 3px;
+    clear: both;
+    font-size: 0.9em;
+    list-style: none;
+}
+
+.ui-multiselect-checkboxes .ui-multiselect-optgroup {
+    padding: 3px;
+}
+
+.ui-multiselect-columns {
+    display: inline-block;
+    vertical-align: top;
+}
+
+.ui-multiselect-checkboxes .ui-multiselect-optgroup a {
+    display: block;
+    margin: 1px 0;
+    padding: 3px;
+    border-bottom: 1px solid;
+    font-weight: bold;
+    text-align: center;
+    text-decoration: none;
+    cursor: pointer;
+}

scss/modules/_multiselect-menu.scss

@@ -38,7 +38,6 @@
         display: block;
         position: absolute;
         border: 0;
-        background-position: 0 0;
         font-size: 0.7em;
         z-index: 1;
     }

scss/modules/_slider.scss

@@ -37,6 +37,7 @@
     border: 0;
 
     .ui-tabs-nav {
+        padding: 0;
         background: none;
 
         &:not(.switcher-list) .ui-tabs-anchor {