[BUGFIX] Calc width for proportion bars

lib/proportions.js

@@ -64,9 +64,8 @@ define(['d3-interpolate', 'snabbdom', 'filters/genericnode', 'helper'],
           var th = V.h('th', a);
           var td = V.h('td', V.h('span', {
             style: {
-              width: Math.round(v * 100) + '%',
-              backgroundColor: scale(v),
-              color: 'white'
+              width: 'calc(25px + ' + Math.round(v * 90) + '%)',
+              backgroundColor: scale(v)
             }
           }, d[1].toFixed(0)));
 

scss/modules/_proportion.scss

@@ -16,6 +16,7 @@
 
   span {
     box-sizing: border-box;
+    color: $color-white;
     display: inline-block;
     font-weight: bold;
     min-width: 1.5em;