diff --git a/ph-css/src/test/java/com/helger/css/supplementary/issues/Issue69Test.java b/ph-css/src/test/java/com/helger/css/supplementary/issues/Issue69Test.java
new file mode 100644
index 00000000..a545f6b2
--- /dev/null
+++ b/ph-css/src/test/java/com/helger/css/supplementary/issues/Issue69Test.java
@@ -0,0 +1,70 @@
+/**
+ * Copyright (C) 2014-2021 Philip Helger (www.helger.com)
+ * philip[at]helger[dot]com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.helger.css.supplementary.issues;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+
+import com.helger.commons.system.ENewLineMode;
+import com.helger.css.ECSSVersion;
+import com.helger.css.decl.CascadingStyleSheet;
+import com.helger.css.reader.CSSReader;
+import com.helger.css.reader.CSSReaderSettings;
+import com.helger.css.writer.CSSWriter;
+import com.helger.css.writer.CSSWriterSettings;
+
+/**
+ * Test for issue 69: https://github.com/phax/ph-css/issues/69
+ *
+ * @author Philip Helger
+ */
+public final class Issue69Test
+{
+  @Test
+  public void testIssue69_v1 ()
+  {
+    final String sCSS = "div+p .foo{width:100vw}";
+    final CascadingStyleSheet aCSS = CSSReader.readFromStringReader (sCSS,
+                                                                     new CSSReaderSettings ().setCSSVersion (ECSSVersion.LATEST)
+                                                                                             .setBrowserCompliantMode (true));
+    assertNotNull (aCSS);
+    assertEquals ("div+p .foo { width:100vw; }\n",
+                  new CSSWriter (new CSSWriterSettings ().setOptimizedOutput (false)
+                                                         .setNewLineMode (ENewLineMode.UNIX)).setWriteHeaderText (false)
+                                                                                             .getCSSAsString (aCSS));
+    assertEquals ("div+p .foo{width:100vw}",
+                  new CSSWriter (new CSSWriterSettings ().setOptimizedOutput (true)).setWriteHeaderText (false).getCSSAsString (aCSS));
+  }
+
+  @Test
+  public void testIssue69_v2 ()
+  {
+    final String sCSS = "div + p .foo{width:100vw}";
+    final CascadingStyleSheet aCSS = CSSReader.readFromStringReader (sCSS,
+                                                                     new CSSReaderSettings ().setCSSVersion (ECSSVersion.LATEST)
+                                                                                             .setBrowserCompliantMode (true));
+    assertNotNull (aCSS);
+    assertEquals ("div+p .foo { width:100vw; }\n",
+                  new CSSWriter (new CSSWriterSettings ().setOptimizedOutput (false)
+                                                         .setNewLineMode (ENewLineMode.UNIX)).setWriteHeaderText (false)
+                                                                                             .getCSSAsString (aCSS));
+    assertEquals ("div+p .foo{width:100vw}",
+                  new CSSWriter (new CSSWriterSettings ().setOptimizedOutput (true)).setWriteHeaderText (false).getCSSAsString (aCSS));
+  }
+}