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                <center><div class="container">
 <h2>Leave Us a Comment</h2>
 <form><textarea placeholder='Username' id ="userName" name="name"></textarea> 
 <div class="btn">
 <textarea placeholder='Add your comment' id ="userComment"  name="comment"></textarea>
 <input id="submit"  type="button" onclick="myFunction()" value="Submit">
<p id="data"></p></div></center>


                @import url(',700&display=swap');

    width: 600px;
    border: 2px solid #333;
    padding: 15px 10px;
    background-color: silver;
    box-shadow: ;}
.container h2{
    text-align: center;
    margin-bottom: 15px}

    height: 20px;
    width: 100%;
    border: none;
    border-bottom: 2px solid #aaa;
    background-color: transparent;
    margin-bottom: 10px;
    resize: none;
    outline: none;}

    opacity: 0;}

input[type="button"], button{
    padding: 10px 15px;
    border: none;
    outline: none;
    border-radius: 5px;
    text-transform: uppercase;
    font-weight: bold;
    cursor: pointer;}

    display: none


                var feild = document.querySelector('textarea');
var backUp = feild.getAttribute('placeholder');
var btn = document.querySelector('.btn');
var clear = document.getElementById('clear')

feild.onfocus = function(){
    this.setAttribute('placeholder', ''); = '#333'; = 'block'}

feild.onblur = function(){
    this.setAttribute('placeholder',backUp); = '#aaa'}

//find user input
function myFunction(){
let name = document.getElementById("userName").value
 let comment = document.getElementById("userComment").value

// alert if user not enter value
  if(!name || !comment){
  alert("please fill all the box")
  return }

//display input value
  data = "<br/><u>Your Submitted Data:</u><br/><br/>User Name : "+name+"<br/>Comment: "+comment
   document.getElementById("data").innerHTML = data 
 //clear input data when click submit     
let btnClear =document.querySelector('input');
let inputs=document.querySelectorAll('textarea');

btnClear.addEventListener('click',()=> {
    inputs.forEach(textarea =>textarea.value='');