@media screen and (max-width: 767px) {
    .c-6-el > * {
        width: 50%;
        float: left;
    }
    .c-6-el {
        width: 100%;
        display: table;
        padding: 0;
    }
    .c-12 {
        width: 100%;
    }
    .next-block {
            height: 100px;
    }
    .calc-article {
        margin: 0;
        padding: 1em;
        max-width: 100vw;
    }
    .calc-logo-header {
        float: none;
        width: 20vw;
        height: auto;
        margin: 0 auto;
        border: 0;
    }
}