* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    padding: 20px;
}

.test-container {
    max-width: 1200px;
    margin: 0 auto;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

.test-info {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.test-info p {
    margin: 5px 0;
    color: #1976d2;
}

.iframe-wrapper {
    background: white;
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.iframe-wrapper h2 {
    margin-bottom: 10px;
    color: #555;
    font-size: 18px;
}

.iframe-container {
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 4px;
    overflow: hidden;
    background: white;
}

iframe {
    width: 100%;
    border: none;
    display: block;
}

.size-controls {
    margin-top: 10px;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 4px;
}

.size-controls label {
    margin-right: 15px;
    color: #666;
}

.size-controls input[type="number"] {
    width: 80px;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin: 0 5px;
}

.size-presets {
    margin-top: 10px;
}

.size-presets button {
    padding: 5px 15px;
    margin-right: 10px;
    background: #2196f3;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.size-presets button:hover {
    background: #1976d2;
}

.full-width {
    width: 100%;
}

.mobile {
    max-width: 375px;
    margin: 0 auto;
}

.tablet {
    max-width: 768px;
    margin: 0 auto;
}

.desktop {
    max-width: 1024px;
    margin: 0 auto;
}