@media screen and (min-width: 771px) {
    .iframe_style {
        margin-left: 7px;
    }
}

.iframe_style iframe {
    width: 410px;
    height: 65px;
}

@media screen and (max-width: 770px) {
    .iframe_style iframe {
        width: calc(100vw - 30px);
    }
}