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              <link href="https://fonts.googleapis.com/css?family=Karla:400,700" rel="stylesheet">

<div class = 'container'>
<div class = 'flex-column'>

<p class = 'info'>Enter a number with decimals.</p>  
  
<input type = 'number' id ='number'>
<button type = 'button' id = 'submit'>Submit</button>

  
<h2>Your Number</h2>
<div id = 'user-number'> </div>

<h2>3 Decimals</h2>
<div id ='three-decimals'> </div>

<h2>3 Digits</h2>
<div id = 'three-digits'> </div>

</div>
            
          
!
            
              body {
  font-family: 'Karla', sans-serif;
  background-color: #fcfcfc;
  
  width: 100vw;
}

.container {
  background-color: #efefef;
  width: 400px;
  height: 85vh;
  margin: 0 auto;
  margin-top: 25px;
  border-radius: 8px;
  -webkit-box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
  -moz-box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
  box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
}

.flex-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 20px;
}

.info {
  margin-bottom: 20px;
}

#number {
  border: none;
  height: 30px;
  width: 200px;
  background-color: #fff;
  border-radius: 5px;
  margin-bottom: 10px;

}

input[type='number'] {
  font-family: 'Karla', sans-serif;
  font-size: 24px;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    transition: background-color 5000s ease-in-out 0s;
}

#submit {
  background-color: #7fdbb7;
  border: none;
  border-radius: 5px;
  font-family: 'Karla', sans-serif;
  font-size: 20px;
  width: 120px;
  cursor: pointer;
  -webkit-box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
  -moz-box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
  box-shadow: 0px 0px 8px -2px rgba(0,0,0,0.40);
  transition: 0.1s linear all;
}

#submit:hover {
  box-shadow: none;
  background-color: #45d19a;
}

#submit:focus {
 outline: 0;
}

h2 {
  font-size: 20px;
  margin-bottom: 0;
}

p {
  margin-bottom: 0;
}

            
          
!
            
              //Add event listener for clicked submit.
document.getElementById('submit').addEventListener('click', function(){

//Get the submited value as a string.  
var number = document.getElementById('number').value;
//Convert string to a number.
var numberInt = parseFloat(number);

//Surround the numbers in a <p> tag.
var userNumber = '<p>' + numberInt + '</p>';
var threeDec = '<p>' + numberInt.toFixed(3) + '</p>';
var threeDig = '<p>' + numberInt.toPrecision(3) + '</p>';

//Create variables of the divs the numbers will be displayed in.  
var usrNmbr = document.getElementById('user-number');
var threeDecimals = document.getElementById('three-decimals');
var threeDigits = document.getElementById('three-digits');


//Push the <p>number</p> variables into the divs using innerHTML.
usrNmbr.innerHTML = userNumber;
threeDecimals.innerHTML = threeDec;
threeDigits.innerHTML = threeDig;


});
            
          
!
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