diff --git a/src/PhpSpreadsheet/Reader/Xlsx.php b/src/PhpSpreadsheet/Reader/Xlsx.php
index bbca0a6575..428014c369 100644
--- a/src/PhpSpreadsheet/Reader/Xlsx.php
+++ b/src/PhpSpreadsheet/Reader/Xlsx.php
@@ -1828,7 +1828,7 @@ private static function dirAdd($base, $add)
 
     private static function toCSSArray($style)
     {
-        $style = trim(str_replace(["\r", "\n", ' '], '', $style), ';');
+        $style = self::stripWhiteSpaceFromStyleString($style);
 
         $temp = explode(';', $style);
         $style = [];
@@ -1857,6 +1857,11 @@ private static function toCSSArray($style)
         return $style;
     }
 
+    public static function stripWhiteSpaceFromStyleString($string)
+    {
+        return trim(str_replace(["\r", "\n", ' '], '', $string), ';');
+    }
+
     private static function boolean($value)
     {
         if (is_object($value)) {
diff --git a/tests/PhpSpreadsheetTests/Reader/XlsxTest.php b/tests/PhpSpreadsheetTests/Reader/XlsxTest.php
index 1180aacc33..f178e851bb 100644
--- a/tests/PhpSpreadsheetTests/Reader/XlsxTest.php
+++ b/tests/PhpSpreadsheetTests/Reader/XlsxTest.php
@@ -228,4 +228,29 @@ public function testLoadSaveWithEmptyDrawings()
         // Fake assert. The only thing we need is to ensure the file is loaded without exception
         $this->assertNotNull($excel);
     }
+
+    /**
+     * Test if all whitespace is removed from a style definition string.
+     * This is needed to parse it into properties with the correct keys.
+     *
+     * @param $string
+     * @dataProvider providerStripsWhiteSpaceFromStyleString
+     */
+    public function testStripsWhiteSpaceFromStyleString($string)
+    {
+        $string = Xlsx::stripWhiteSpaceFromStyleString($string);
+        $this->assertEquals(preg_match('/\s/', $string), 0);
+    }
+
+    public function providerStripsWhiteSpaceFromStyleString()
+    {
+        return [
+            ['position:absolute;margin-left:424.5pt;margin-top:169.5pt;width:67.5pt;
+        height:13.5pt;z-index:5;mso-wrap-style:tight'],
+            ['position:absolute;margin-left:424.5pt;margin-top:169.5pt;width:67.5pt;
+height:13.5pt;z-index:5;mso-wrap-style:tight'],
+            ['position:absolute; margin-left:424.5pt; margin-top:169.5pt; width:67.5pt;
+            height:13.5pt;z-index:5;mso-wrap-style:tight'],
+        ];
+    }
 }