.about-row {
    display: flex;
    align-items: start;
    justify-content: space-between;
}

.about-row .about-block:nth-child(1) {
    width: 65%;
}

.about-row .about-block:nth-child(1) .about-title {
    font-weight: 500;
}


.about-row .about-block:nth-child(1) p {
    line-height: 20px;
    margin-bottom: 15px;
}

.about-row .about-block:nth-child(2) {
    width: 30%;
}

.about-row .about-block:nth-child(2) .about-src {
    width: 100%;
}

.about-advantages--row {
    display: flex;
    justify-content: space-between;
    border-left: 5px solid red;
}

.about-advantages--row ul li {
    line-height: 20px;
}

.about-advantages--row ul li:before {
    display: none;
}

.about-advantages--row ul:nth-child(1) {
    margin-left: 30px;
}

.about-advantages--row ul:nth-child(2) {
    margin-right: 100px;
}

@media(max-width: 1200px) {


    .about-advantages--row {
        display: block;
    }

    .about-advantages--row ul {
        margin-left: 30px;
        margin-bottom: 0;
    }
}

@media(max-width: 992px) {
    .about-row {
        display: block;
    }

    .about-row .about-block:nth-child(1) {
        width: 100%;
    }

    .about-row .about-block:nth-child(2) {
        width: 60%;
        margin-top: 40px;
    }
}

@media(max-width: 480px) {
    .about-row .about-block:nth-child(2) {
        width: 100%;
    }
    .about-advantages--row ul li {
        font-size: 12px;
        line-height: 15px;
    }
}