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							- var lexer = require('css-tree').lexer;
 
- var packNumber = require('./Number').pack;
 
- var blacklist = new Set([
 
-     // see https://github.com/jakubpawlowicz/clean-css/issues/957
 
-     'width',
 
-     'min-width',
 
-     'max-width',
 
-     'height',
 
-     'min-height',
 
-     'max-height',
 
-     // issue #410: Don’t remove units in flex-basis value for (-ms-)flex shorthand
 
-     // issue #362: shouldn't remove unit in -ms-flex since it breaks flex in IE10/11
 
-     // issue #200: shouldn't remove unit in flex since it breaks flex in IE10/11
 
-     'flex',
 
-     '-ms-flex'
 
- ]);
 
- module.exports = function compressPercentage(node, item) {
 
-     node.value = packNumber(node.value, item);
 
-     if (node.value === '0' && this.declaration && !blacklist.has(this.declaration.property)) {
 
-         // try to convert a number
 
-         item.data = {
 
-             type: 'Number',
 
-             loc: node.loc,
 
-             value: node.value
 
-         };
 
-         // that's ok only when new value matches on length
 
-         if (!lexer.matchDeclaration(this.declaration).isType(item.data, 'length')) {
 
-             // otherwise rollback changes
 
-             item.data = node;
 
-         }
 
-     }
 
- };
 
 
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