.google-slides-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9のアスペクト比を維持 */
}

.google-slides-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}