diff --git a/docs/examples/math/ResultNode.vue b/docs/examples/math/ResultNode.vue
index 95ddc6ad..2e15a807 100644
--- a/docs/examples/math/ResultNode.vue
+++ b/docs/examples/math/ResultNode.vue
@@ -64,7 +64,7 @@ const result = computed(() => {
 
   <span> = </span>
 
-  <span class="counter" :style="{ color: result > 0 ? '#5EC697' : '#f15a16' }">
+  <span class="result" :style="{ color: result > 0 ? '#5EC697' : '#f15a16' }">
     {{ result }}
   </span>
 
diff --git a/docs/examples/math/style.css b/docs/examples/math/style.css
index 11c443c5..99a7bc73 100644
--- a/docs/examples/math/style.css
+++ b/docs/examples/math/style.css
@@ -15,12 +15,15 @@
   stroke-width: 3;
 }
 
+.vue-flow__node {
+  background-color: #f3f4f6;
+}
+
 .vue-flow__node-value {
   display: flex;
   align-items: center;
   gap: 8px;
   padding: 8px 16px;
-  background-color: #f3f4f6;
   border-radius: 8px;
   box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
 }
@@ -39,6 +42,8 @@
 
 .vue-flow__node-value input:focus {
   outline: none;
+  box-shadow: 0 0 0 2px #ec4899;
+  transition: box-shadow 0.2s;
 }
 
 .vue-flow__node-value .vue-flow__handle {
@@ -51,7 +56,6 @@
   align-items: center;
   gap: 8px;
   padding: 16px 24px;
-  background-color: #f3f4f6;
   border-radius: 8px;
   box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
 }
@@ -112,7 +116,6 @@
   align-items: center;
   gap: 8px;
   padding: 16px 24px;
-  background-color: #f3f4f6;
   border-radius: 8px;
   box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
 }
@@ -121,8 +124,18 @@
   box-shadow: 0 0 0 2px #5EC697;
 }
 
-.vue-flow__node-result .calculation {
+.vue-flow__node-result .result {
   display: flex;
   gap: 8px;
   font-size: 24px;
 }
+
+input::-webkit-outer-spin-button,
+input::-webkit-inner-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type="number"] {
+  -moz-appearance: textfield;
+}