Numeric Pyramid

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Numeric Pyramid</title>
    <style>
        #pyramid {
            margin-top: 20px;
            color: #f00;
        }
    </style>
    <script>
        function numPyramid() {
            let steps = (document.getElementById('steps').value * 1);
            document.getElementById('pyramid').innerHTML = "";

            for (let i = 1; i <= steps; i++) {
                for (let j = 1; j <= i; j++) {
                    document.getElementById('pyramid').innerHTML += i;
                }
                document.getElementById('pyramid').innerHTML += '<br />'
            }
        }  
    </script>
</head>
<body>
    <h1>Generate Numeric Pyramid</h1>
    <input type="text" placeholder="Mention Number of Steps" id="steps" />
    <button type="button" onclick="numPyramid()">Generate</button>
    <div id="pyramid"></div>
</body>
</html>
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Result Screenshot(s)

Numeric PyramidWorking Sample0