.img-brand {
    filter: grayscale(1);
}
.img-brand:hover {
    filter: grayscale(0);
}

iframe-container * {
    font-family: inherit !important;
    color: inherit !important;
    background-color: transparent !important;
    border-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

iframe-container > iframe {
    width: 100%;
    height: auto;
    min-height: 300px;
    display: block;
}

font-family: 'Helvetica Neue', Arial, Yandex Sans, sans-serif;