.tutorial-container {
            line-height: 1.6;
            max-width: 800px;
            margin: 0 auto;
            padding: 10px;
            background: #f0f2f5;
            color: #333;
        }
        .container {
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        h1 {
            color: #2c3e50;
            text-align: center;
            font-size: 2.5em;
            margin-bottom: 30px;
        }
        .section {
            margin-bottom: 25px;
        }
        h2 {
            color: #3498db;
            border-bottom: 2px solid #3498db;
            padding-bottom: 5px;
            margin-bottom: 15px;
        }
        .step {
            background: #f8f9fa;
            padding: 15px;
            border-left: 4px solid #3498db;
            margin-bottom: 15px;
            border-radius: 0 5px 5px 0;
        }
        .highlight {
            background: #e8f4f8;
            padding: 10px;
            border-radius: 5px;
            margin: 10px 0;
        }
        .emoji {
            font-size: 1.2em;
        }
        .back-button {
            display: inline-block;
            padding: 2px 15px;
            background-color: #3498db;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            margin-bottom: 2px;
            transition: background-color 0.3s;
        }
        .back-button:hover {
            background-color: #2980b9;
        }

        @media (max-width: 420px) {
            .tutorial-container {
                line-height: 1.6;
                max-width: 600px;
                margin: 0 auto;
                padding: 1px;         
            }
        
            .container {
                padding: 0.1rem;
            }        
        }