Merge pull request #179 from jogjayr/configurable-font-size-2

Use !default to declare SCSS variables & make font-sizes configurable

lib/angular-tooltips.scss

@@ -1,13 +1,16 @@
-$tolerance: 3px;
-$margin-tooltip-arrow: 6px;
-$padding-top-bottom-tooltip: 8px;
-$padding-right-left-tooltip: 16px;
-$tooltip-background-color: rgba(0, 0, 0, .85);
-$tooltip-color: #fff;
-$tooltip-border-radius: 3px;
-$tooltip-fast-transition: .15s;
-$tooltip-slow-transition: .65s;
-$tooltip-medium-transition: .35s;
+$tolerance: 3px !default;
+$margin-tooltip-arrow: 6px !default;
+$padding-top-bottom-tooltip: 8px !default;
+$padding-right-left-tooltip: 16px !default;
+$tooltip-background-color: rgba(0, 0, 0, .85) !default;
+$tooltip-color: #fff !default;
+$tooltip-border-radius: 3px !default;
+$tooltip-fast-transition: .15s !default;
+$tooltip-slow-transition: .65s !default;
+$tooltip-medium-transition: .35s !default;
+$tooltip-font-size-small: .8em !default;
+$tooltip-font-size-medium: .95em !default;
+$tooltip-font-size-large: 1.1em !default;
 
 @mixin opacity-transition($speed) {
   animation: animate-tooltip $speed;
@@ -144,16 +147,16 @@ tooltip {
 
   tip-tip {
 
-    font-size: .95em;
+    font-size: $tooltip-font-size-medium;
 
     &._large {
 
-      font-size: 1.1em;
+      font-size: $tooltip-font-size-large;
     }
 
     &._small {
 
-      font-size: .8em;
+      font-size: $tooltip-font-size-small;
     }
   }