.multi-iframe-buttons-wrapper {
                display: flex;
                flex-wrap: wrap;
                gap: 10px;
                margin-bottom: 20px;
            }

            .multi-iframe-button {
                background-color: #0073aa;
                color: #fff;
                border: none;
                padding: 10px 20px;
                border-radius: 5px;
                cursor: pointer;
                font-size: 16px;
                transition: background-color 0.3s ease;
                box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
            }

            .multi-iframe-button:hover {
                background-color: #005177;
            }

            .multi-iframe-container {
                position: fixed; /* Use fixed for full screen modal */
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background-color: rgba(0, 0, 0, 0.8); /* Dark overlay */
                display: flex; /* Use flexbox for centering */
                justify-content: center;
                align-items: center;
                z-index: 9999; /* Ensure it's on top */
                opacity: 0;
                visibility: hidden;
                transition: opacity 0.3s ease, visibility 0.3s ease;
            }

            .multi-iframe-container.is-visible {
                opacity: 1;
                visibility: visible;
            }

            .multi-iframe-item {
                display: block;
                max-width: 90%; /* Max width relative to container */
                max-height: 90%; /* Max height relative to container */
                width: var(--iframe-width, 100%); /* Use CSS variable for dynamic width */
                height: var(--iframe-height, 100%); /* Use CSS variable for dynamic height */
                border: none;
                border-radius: 8px;
                box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
            }

            .multi-iframe-close-button {
                position: absolute;
                top: 20px;
                right: 20px;
                background: #fff;
                color: #333;
                border: none;
                border-radius: 50%;
                width: 40px;
                height: 40px;
                font-size: 24px;
                cursor: pointer;
                display: flex;
                justify-content: center;
                align-items: center;
                line-height: 1;
                box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
                z-index: 10000; /* Above the iframe */
            }

            .multi-iframe-close-button:hover {
                background-color: #eee;
            }

            /* Responsive adjustments */
            @media (max-width: 768px) {
                .multi-iframe-button {
                    padding: 8px 15px;
                    font-size: 14px;
                }
                .multi-iframe-item {
                    max-width: 95%;
                    max-height: 95%;
                }
                .multi-iframe-close-button {
                    top: 10px;
                    right: 10px;
                    width: 30px;
                    height: 30px;
                    font-size: 20px;
                }
            }