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HTML 

              
                <div class="container">
			<div class="col-md-6 offset-md-3">
				<h1>Random Number Generator</h1>

				<form id="generatorForm">
					<div class="row">
						<div class="col-md-6">
							<div class="form-group">
								<label for="minNumber">Starting Number</label>
								<input type="number" class="form-control" id="minNumber" aria-describedby="minNumberHelp">
								<small id="minNumberHelp" class="form-text text-muted">Enter the first number of the sequence (i.e., "1")</small>
							</div><!-- .form-group -->
						</div><!-- .col-md-6 -->
						<div class="col-md-6">
							<div class="form-group">
								<label for="maxNumber">Ending Number</label>
								<input type="number" class="form-control" id="maxNumber" aria-describedby="maxNumberHelp">
								<small id="maxNumberHelp" class="form-text text-muted">Enter the last number of the sequence (i.e., "10")</small>
							</div><!-- .form-group -->
						</div><!-- .col-md-6 -->
					</div><!-- .row -->
					
					<div class="row">
						<div class="col-md-12">
							<button type="button" id="generateBtn" class="btn btn-primary" onclick="randomNumber()">Generate Random Number</button>
							
							<button type="reset" id="reset" class="btn btn-secondary">Reset</button>
						</div><!-- .col-md-12 -->
					</div><!-- .row -->
					
					<div class="row">
						<div class="col-md-6 offset-md-3">
							<div class="form-group">
								<label for="result">Random Number</label>
								<input type="number" class="form-control" id="result" aria-describedby="resultHelp" readonly>
								<small id="resultHelp" class="form-text text-muted sr-only">Results are displayed in this box</small>
							</div><!-- .form-group -->
						</div><!-- .col-md-6 -->
					</div><!-- .row -->
				</form>
			</div><!-- .col-md-6 .offset-md-3-->
		</div><!-- .container -->
		
		<!-- Optional JavaScript -->
		<!-- jQuery first, then Popper.js, then Bootstrap JS -->
		<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
		<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
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CSS 

              
                body {
	font-family: 'Arial', sans-serif;
}

h1 {
	font-size: 1.5rem;
	font-weight: bold;
	font-family: 'Arial Bold', sans-serif;
	margin: 25px 0;
}

small {
	font-family: 'Arial Narrow', sans-serif;
}

#generateBtn, #reset {
	margin: 25px 5px;
	font-family: 'Arial Narrow', sans-serif;
}

#result {
	height: 4rem;
	font-size: 3rem;
	text-align: center;
	cursor: not-allowed;
}
!

JS 

              
                // TAKE NUMBER INPUT FROM USER "minNumber" and "maxNumber"

// Get "minNumber" from user input and store in variable
// var min = document.getElementById("minNumber").value;

// Get "maxNumber" from user input and store in variable
// var max = document.getElementById("maxNumber").value;

// Use "minNumber" to generate the floor number used in the random calculation
// Use "maxNumber" to generate the ceiling number used in the random calculation

function randomNumber() {
	var min = parseInt(document.getElementById("minNumber").value);
	var max = parseInt(document.getElementById("maxNumber").value) + 1;
	
	if (isNaN(min) || isNaN(max)) {
		alert('Please enter a number into the blank field(s)');
	} else if (min > max) {
		alert('Please make sure the maximum number is greater than the minumum number');
	} else {	
		var result = Math.floor(Math.random() * (max - min)) + min;
		
		document.getElementById("result").value = result;
	}
}

// WHEN 'ENTER' KEY IS PRESSED IN maxNumber FIELD, INVOKE getRequest FUNCTION
document.getElementById('maxNumber').addEventListener("keyup", function(event) {
  event.preventDefault();
  if (event.keyCode === 13) {
    document.getElementById('generateBtn').click();
  }
})

// WHEN 'ENTER' KEY IS PRESSED IN minNumber FIELD, INVOKE getRequest FUNCTION
document.getElementById('minNumber').addEventListener("keyup", function(event) {
  event.preventDefault();
  if (event.keyCode === 13) {
    document.getElementById('generateBtn').click();
  }
})
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999px

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