diff --git a/src/com/inet/lib/less/CssFormatter.java b/src/com/inet/lib/less/CssFormatter.java
index afd2cd2c..85eeb300 100644
--- a/src/com/inet/lib/less/CssFormatter.java
+++ b/src/com/inet/lib/less/CssFormatter.java
@@ -759,11 +759,7 @@ void appendProperty( @Nonnull String name, @Nonnull Expression value ) {
         name = SelectorUtils.replacePlaceHolder( this, name, value );
         output.append( name ).append( ':' );
         space();
-        if( "font".equals( name ) && value.getClass() == Operation.class ) {
-            appendFontPropertyValue( (Operation)value );
-        } else {
-            value.appendTo( this );
-        }
+        value.appendTo( this );
         if( state.importantCount > 0 || value.isImportant() ) {
             output.append( " !important" );
         }
@@ -771,32 +767,6 @@ void appendProperty( @Nonnull String name, @Nonnull Expression value ) {
         newline();
     }
 
-    /**
-     * Special hack for property "font" which contains a value font-size/line-height
-     * @param value the value
-     */
-    void appendFontPropertyValue( Operation value ) {
-        ArrayList<Expression> operands = value.getOperands();
-        char operator = value.getOperator();
-        switch( operator ) {
-            case '~':
-            case ',':
-                value.appendTo( this );
-                return;
-        }
-        for( int i = 0; i < operands.size(); i++ ) {
-            if( i > 0 ) {
-                this.append( operator );
-            }
-            Expression operand = operands.get( i );
-            if( operand.getClass() == Operation.class ) {
-                appendFontPropertyValue( (Operation)operand );
-            } else {
-                operand.appendTo( this );
-            }
-        }
-    }
-
     /**
      * Increment the important flag.
      */
diff --git a/src/com/inet/lib/less/LessParser.java b/src/com/inet/lib/less/LessParser.java
index b7165af7..8263b660 100644
--- a/src/com/inet/lib/less/LessParser.java
+++ b/src/com/inet/lib/less/LessParser.java
@@ -45,6 +45,10 @@
  */
 class LessParser implements FormattableContainer {
 
+    private boolean                     strictMath;
+
+    private int                         nesting;
+
     private URL                         baseURL;
 
     private ReaderFactory               readerFactory;
@@ -184,7 +188,9 @@ private void parseSemicolon( FormattableContainer currentRule ) {
                         continue LOOP;
                     }
                     String name = trim( builder );
+                    strictMath = "font".equals( name );
                     Expression value = parseExpression( (char)0 );
+                    strictMath = false;
                     ch = read();
                     switch( ch ) {
                         case '}': //last line in a block does not need a semicolon
@@ -784,6 +790,14 @@ private Expression parseExpression( char leftOperator ) {
                     }
                     switch( ch ) {
                         case '/':
+                            if( strictMath && nesting == 0 ) {
+                                if( wasWhite ) {
+                                    builder.append( ' ' );
+                                    wasWhite = false;
+                                }
+                                builder.append( ch );
+                                continue LOOP;
+                            }
                             if( comment( null ) ) {
                                 continue LOOP;
                             }
@@ -979,7 +993,9 @@ Operation parseParameterList() {
         Expression left = null;
         char ch;
         do {
+            nesting++;
             Expression expr = parseExpression( (char)0 );
+            nesting--;
             left = concat( left, ';', expr );
             ch = read();
         } while( ch == ';' );
diff --git a/test/com/inet/lib/less/samples/general/import.css b/test/com/inet/lib/less/samples/general/import.css
index f7c93d22..46ade3a4 100644
--- a/test/com/inet/lib/less/samples/general/import.css
+++ b/test/com/inet/lib/less/samples/general/import.css
@@ -9,6 +9,7 @@
   f: a / b;
   g: a / b;
   h: a / b;
+  font: 3/2;
 }
 .values .slash2 {
   background: url("img.jpg") center / 100px;
diff --git a/test/com/inet/lib/less/samples/general/importOptional.css b/test/com/inet/lib/less/samples/general/importOptional.css
index b3bba7f6..6995c342 100644
--- a/test/com/inet/lib/less/samples/general/importOptional.css
+++ b/test/com/inet/lib/less/samples/general/importOptional.css
@@ -5,6 +5,7 @@
   f: a / b;
   g: a / b;
   h: a / b;
+  font: 3/2;
 }
 .slash2 {
   background: url("img.jpg") center / 100px;
diff --git a/test/com/inet/lib/less/samples/general/slash.css b/test/com/inet/lib/less/samples/general/slash.css
index b3bba7f6..6995c342 100644
--- a/test/com/inet/lib/less/samples/general/slash.css
+++ b/test/com/inet/lib/less/samples/general/slash.css
@@ -5,6 +5,7 @@
   f: a / b;
   g: a / b;
   h: a / b;
+  font: 3/2;
 }
 .slash2 {
   background: url("img.jpg") center / 100px;
diff --git a/test/com/inet/lib/less/samples/general/slash.less b/test/com/inet/lib/less/samples/general/slash.less
index 463c71b1..8d12b418 100644
--- a/test/com/inet/lib/less/samples/general/slash.less
+++ b/test/com/inet/lib/less/samples/general/slash.less
@@ -7,6 +7,7 @@
   f: a/ b;
   g: a /b;
   h: a/b;
+  font:3/2;
 }
 .slash2 {
   background: url("img.jpg") center / 100px;
diff --git a/test/com/inet/lib/less/samples/less_org_tests/less/css.css b/test/com/inet/lib/less/samples/less_org_tests/less/css.css
index efb17e86..ab01bd05 100644
--- a/test/com/inet/lib/less/samples/less_org_tests/less/css.css
+++ b/test/com/inet/lib/less/samples/less_org_tests/less/css.css
@@ -60,7 +60,7 @@ p + h1 {
 #more-shorthands {
   margin: 0;
   padding: 1px 0 2px 0;
-  font: normal small / 20px 'Trebuchet MS', Verdana, sans-serif;
+  font: normal small/20px 'Trebuchet MS', Verdana, sans-serif;
   font: 0/0 a;
   border-radius: 0.5px;
 }