Fix column width on the home page

src/components/HomepageFeatures/index.js

@@ -78,7 +78,7 @@ const FeatureList = [
 function Feature({ Svg, title, link, description }) {
   return (
 
-    <div className={clsx('col col--3')}>
+    <div className={clsx('col col--3', styles.featureBlock)}>
       <div className="text--center">
         <a href={link} target='_blank' className={styles.featureLink}>
           <Svg fill="currentColor" className={styles.featureSvg} role="img" />