CSS Tooltips

<!DOCTYPE html>
<html>
<head>
    <style>
        .tooltip-container {
            position: relative;
            display: inline-block;
            border-bottom: 2px dotted #0d2e5c;
            font-family: sans-serif;
            font-weight: bold;
            color: #0d2e5c;
            cursor: pointer;
            margin: 40px;
        }
        .tooltip-text {
            visibility: hidden;
            width: 180px;
            background-color: #0d2e5c;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 8px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            margin-left: -90px;
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 13px;
        }
        .tooltip-container:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }
    </style>
</head>
<body>
    <div class="tooltip-container">
        Arahkan Kursor ke Sini
        <span class="tooltip-text">Ini adalah tooltip CSS murni yang melayang!</span>
    </div>
</body>
</html>