Merge pull request #4 from behroozbc/fix/gauge-temperature

fix height
diff --git a/examples/data/gauge-temperature.js b/examples/data/gauge-temperature.js
index ac8f74c..22c8edf 100644
--- a/examples/data/gauge-temperature.js
+++ b/examples/data/gauge-temperature.js
@@ -61,7 +61,7 @@
                 valueAnimation: true,
                 width: '60%',
                 lineHeight: 40,
-                height: '15%',
+                height: 15,
                 borderRadius: 8,
                 offsetCenter: [0, '-15%'],
                 fontSize: 60,