More-CSS/CSS-counters.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS Counters</title>
    <style>
        ol {
            list-style: none;
        }

        ol li {
            font-size: 24px;
            counter-increment: list-element;
            position: relative;
            left: 0;
            margin: 20px 0;
            padding-left: 25px;
            padding-top: 10px;
            font-size: 25px;
        }

        ol li::before {
            content: counter(list-element);
            background: palegreen;
            color: red;
            border-radius: 50%;
            margin-right: 10px;
            font-size: 25px;
            width: 45px;
            height: 45px;
            position: absolute;
            left: -30px;
            vertical-align: middle;
            line-height: 45px;
            box-sizing: border-box;
            text-align: center;
        }
    </style>
</head>

<body>
    <ol>
        <li>Apple</li>
        <li>MSI</li>
        <li>HP</li>
        <li>Acer</li>
        <li>Dell</li>
        <li>Toshiba</li>
        <li>Sony</li>
        <li>Lenovo</li>
        <li>Compaq</li>
    </ol>
</body>

</html>