#tc-frame-container {
    &.loading {
        position: relative;

        iframe {
            background: #ddd;
        }

        &::after {
            content: "";
            position: absolute;
            left: 50%;
            top: 50%;
            width: 64px;
            height: 64px;
            margin-top: -32px;
            margin-left: -32px;
            border: 8px solid #fff;
            border-top-color: #6b3267;
            border-radius: 50%;
            animation: spin 2s linear infinite;
        }
    }

    iframe {
        width: 100%;
        min-height: 400px;
        border: none;
    }
}

@@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}