diff --git a/src/PhpWord/Style/AbstractStyle.php b/src/PhpWord/Style/AbstractStyle.php
index 8167c4d2..13ef8f9b 100644
--- a/src/PhpWord/Style/AbstractStyle.php
+++ b/src/PhpWord/Style/AbstractStyle.php
@@ -245,7 +245,7 @@ abstract class AbstractStyle
         if (is_string($value) && (preg_match('/[^\d\.\,]/', $value) == 0)) {
             $value = floatval($value);
         }
-        if (!is_float($value)) {
+        if (!is_numeric($value)) {
             $value = $default;
         }
 
diff --git a/src/PhpWord/Style/Image.php b/src/PhpWord/Style/Image.php
index f816b32f..1de51870 100644
--- a/src/PhpWord/Style/Image.php
+++ b/src/PhpWord/Style/Image.php
@@ -250,7 +250,7 @@ class Image extends AbstractStyle
      */
     public function setMarginTop($value = 0)
     {
-        $this->marginTop = $this->setFloatVal($value, 0);
+        $this->marginTop = $this->setNumericVal($value, 0);
 
         return $this;
     }
@@ -273,7 +273,7 @@ class Image extends AbstractStyle
      */
     public function setMarginLeft($value = 0)
     {
-        $this->marginLeft = $this->setFloatVal($value, 0);
+        $this->marginLeft = $this->setNumericVal($value, 0);
 
         return $this;
     }