diff --git a/21_Day/21_day_dom.md b/21_Day/21_day_dom.md
index 1998eb3..ba2521b 100644
--- a/21_Day/21_day_dom.md
+++ b/21_Day/21_day_dom.md
@@ -618,88 +618,7 @@ We can access all the key numbers of the keyboard using different event listener
 </html>
 ```
 
-```html
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Document Object Model:30 Days Of JavaScript</title>
-    <link
-      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500&display=swap"
-      rel="stylesheet"
-    />
-    <style>
-      * {
-        box-sizing: border-box;
-        padding: 0;
-        margin: 0;
-      }
-
-      body {
-        text-align: center;
-        margin-top: 50px;
-        font-family: 'Roboto', sans-serif;
-      }
-
-      h1 {
-        font-size: 48px;
-        margin: 50px auto;
-        background: #fbe324;
-        width: 650px;
-        padding: 5px;
-        color: #444;
-        font-weight: 300;
-      }
-
-      input {
-        width: 250px;
-        height: 45px;
-        text-indent: 10px;
-        font-size: 18px;
-      }
-
-      button {
-        width: 150px;
-        height: 45px;
-        border: none;
-        background: #fbe324;
-        color: #444;
-        border-radius: 3px;
-        font-size: 18px;
-      }
-
-      p {
-        margin: 15px auto;
-        background: #fbe324;
-        width: 650px;
-        padding: 5px;
-        font-size: 28px;
-        font-weight: 300;
-      }
-    </style>
-  </head>
-
-  <body>
-    <h1>Body Mass Index Calculator</h1>
-
-    <input type="text" id="mass" placeholder="Mass in Kilogram" />
-    <input type="text" id="height" placeholder="Height in meters" />
-    <button>Calculate BMI</button>
-
-    <script>
-      const mass = document.querySelector('#mass')
-      const height = document.querySelector('#height')
-      const button = document.querySelector('button')
-      const bmiResult = document.createElement('p')
-      let bmi
-      button.addEventListener('click', () => {
-        bmi = mass.value / height.value ** 2
-        bmiResult.textContent = bmi.toFixed(2)
-        document.body.appendChild(bmiResult)
-      })
-    </script>
-  </body>
-</html>
-```
+Now, we have covered most DOM topics, tomorrow I will add some contents and I will do proof reading.
 
 🌕 Now, you are with super power, you have completed the most important part. You learned DOM and now you knew how to build a house, keep building houses. Now do some exercises for your brain and for your muscle.
 
