body {
            font-family: Arial, sans-serif;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }

        .container {
            display: flex;
            justify-content: space-around;
            align-items: center;
            width: 800px;
        }

        .list-container {
            width: 300px;
        }

        ul {
            list-style-type: none;
            padding: 0;
        }

        li {
            padding: 5px;
            border: 1px solid #ccc;
            margin-bottom: 5px;
            cursor: pointer;
        }

        li.selected {
            background-color: #d3d3d3;
        }

        .buttons {
            display: flex;
            flex-direction: column;
        }

        .buttons button {
            margin: 5px 0;
            padding: 10px;
            cursor: pointer;
        }

        .tabContainer {
            height: 500px;
            width: 800px;
            padding: 20px;
            border: 1px solid #ccc;
            border-radius: 5px;
            background-color: #f9f9f9;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .tabContainer h3 {
            margin-top: 0;
        }

        /* Style for the color preview box */
        .color-preview {
            width: 50px;
            height: 50px;
            margin-left: 10px;
            display: inline-block;
            vertical-align: middle;
            border: 1px solid #ccc;
            background-color: white;
            /* Default background color */
        }

        .form-container {
            width: 300px;
            margin: 120px auto;
            padding: 20px;
            border: 1px solid #ccc;
            border-radius: 5px;
            background-color: #f9f9f9;
        }

        .form-container .form-group {
            margin-bottom: 15px;
        }

        .form-container label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
        }

        .form-container input {
            width: 100%;
            padding: 8px;
            margin-bottom: 5px;
            border: 1px solid #ccc;
            border-radius: 3px;
        }

        .form-container button {
            width: 100%;
            padding: 10px;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 3px;
            cursor: pointer;
        }

        .form-container button:hover {
            background-color: #45a049;
        }

        .welcome-container {
            position: relative;
            top: 0;
            left: 0;
            width: 100%;
            background-color: #f4f4f4;
            padding: 20px 40px;
            box-sizing: border-box;
            border-bottom: 1px solid #ddd;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .welcome-container h1 {
            margin: 0;
            font-size: 20px;
            color: #333;
            justify-content: center;
        }