diff --git a/js/customizer.js b/js/customizer.js
index 757367a..3beba50 100644
--- a/js/customizer.js
+++ b/js/customizer.js
@@ -11,32 +11,26 @@
 	// Site title and description.
 	wp.customize( 'blogname', function( value ) {
 		value.bind( function( to ) {
-			$( '.site-title a' ).text( to );
-		} );
-	} );
+			document.querySelector( '.site-title a' ).textContent( to );
+		});
+	});
 	wp.customize( 'blogdescription', function( value ) {
 		value.bind( function( to ) {
-			$( '.site-description' ).text( to );
-		} );
-	} );
+			document.querySelector( '.site-description' ).textContent( to );
+		});
+	});
 
 	// Header text color.
 	wp.customize( 'header_textcolor', function( value ) {
 		value.bind( function( to ) {
 			if ( 'blank' === to ) {
-				$( '.site-title, .site-description' ).css( {
-					'clip': 'rect(1px, 1px, 1px, 1px)',
-					'position': 'absolute'
-				} );
+				document.querySelector( '.site-title, .site-description' ).style.clip = 'auto';
+        document.querySelector( '.site-title, .site-description' ).style.position = 'absolute'
 			} else {
-				$( '.site-title, .site-description' ).css( {
-					'clip': 'auto',
-					'position': 'relative'
-				} );
-				$( '.site-title a, .site-description' ).css( {
-					'color': to
-				} );
+        document.querySelector( '.site-title, .site-description' ).style.clip = 'auto';
+        document.querySelector( '.site-title, .site-description' ).style.position = 'relative';
+				document.querySelector( '.site-title a, .site-description' ).style.color = to ;
 			}
-		} );
-	} );
-} )( jQuery );
+		});
+	});
+})( jQuery );
diff --git a/single.php b/single.php
index f8ffb0a..29f2226 100644
--- a/single.php
+++ b/single.php
@@ -1,4 +1,4 @@
-<?php
+<?php if( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
 /**
  * The template for displaying all single posts
  *