diff --git a/example/index.html b/example/index.html
index 049aebe05d829113e7de6e200e93c62954d817f4..53db67a8ed1d6f2b1db997237c4725a3af3cbc3c 100644
--- a/example/index.html
+++ b/example/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
diff --git a/example/src/Example5Colors.vue b/example/src/Example5Colors.vue
index 47c2d4ec9345724a0c0a4e2778cf4dbd66a6d551..f3224df18eb07927c6bf429cdfb4ec1f7676ec7d 100644
--- a/example/src/Example5Colors.vue
+++ b/example/src/Example5Colors.vue
@@ -91,7 +91,7 @@ export default {
           // Moved to gridA
           this.findAndRemove(
             item.originGridId === "gridB" ? this.placedB : this.placedC,
-            item.key
+            item.key,
           );
           this.placedA.push(item.key);
           break;
@@ -99,7 +99,7 @@ export default {
           // Moved to gridB
           this.findAndRemove(
             item.originGridId === "gridA" ? this.placedA : this.placedC,
-            item.key
+            item.key,
           );
           this.placedB.push(item.key);
           break;
@@ -107,7 +107,7 @@ export default {
           // Moved to gridC
           this.findAndRemove(
             item.originGridId === "gridB" ? this.placedB : this.placedA,
-            item.key
+            item.key,
           );
           this.placedC.push(item.key);
           break;
diff --git a/src/DragGrid.vue b/src/DragGrid.vue
index 08db555b149b17278ab9a9d6e1f066c771916539..1572374d6b64265cfe91c8ef0b489833d905ce61 100644
--- a/src/DragGrid.vue
+++ b/src/DragGrid.vue
@@ -179,7 +179,7 @@ export default {
       let element = JSON.parse(data);
       let coords = this.getCoords(
         event.dragEvent.client.x - element.mouseX,
-        event.dragEvent.client.y - element.mouseY
+        event.dragEvent.client.y - element.mouseY,
       );
 
       if (element.context !== this.context || this.noHighlight) {
@@ -225,7 +225,7 @@ export default {
 
       let coords = this.getCoords(
         event.dragEvent.client.x - element.mouseX,
-        event.dragEvent.client.y - element.mouseY
+        event.dragEvent.client.y - element.mouseY,
       );
 
       let newPositionValid = true;
@@ -264,7 +264,7 @@ export default {
         if (e.code === DOMException.DATA_CLONE_ERR) {
           // We use functions for properties → we can't clone; only emit `item-changed` event
           console.debug(
-            "Grid couldn't be cloned, please listen to the `item-changed` event and handle changes yourself."
+            "Grid couldn't be cloned, please listen to the `item-changed` event and handle changes yourself.",
           );
         } else {
           throw e;
@@ -286,12 +286,12 @@ export default {
         x: this.clamp(
           1,
           Math.ceil((x - rect.x) / (rect.width / this.cols)),
-          this.cols
+          this.cols,
         ),
         y: this.clamp(
           1,
           Math.ceil((y - rect.y) / (rect.height / this.rows)),
-          this.rows
+          this.rows,
         ),
       };
     },
@@ -326,7 +326,7 @@ export default {
       if (this.value.some((item) => item.w > 1)) {
         console.warn(
           "You are using multipleItemsY but some items have a width greater than 1.",
-          "This is not supported and will lead to unexpected behaviour."
+          "This is not supported and will lead to unexpected behaviour.",
         );
       }