@media (max-width: 1300px) {
    .div-contact-form {
        display: block;
    }
    .contact-form {
        width: 100%;
    }
}

@media (max-width: 800px) {
    nav {
        display: none;
    }
    header img {
        display: block !important;
        height: 30%;
        cursor: pointer;
    }
    .section-hero-title {
        align-items: baseline;
    }
    .about-content {
        font-size: 1.1em;
    }
}

@media (max-width: 670px) {
    header img {
        display: block !important;
        height: 20%;
        cursor: pointer;
    }
    header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-left: 4vw;
        padding-right: 4vw;
    }
    header a {
        display: flex;
        align-items: center;
    }
    header a img {
        height: 70%;
    }
}

@media (max-width: 630px) {
    .contact-content-left {
        width: 0px;
    }
    .contact-content-right {
        width: 100%;
    }
    .div-contact-form {
        margin-top: 30px;
        width: 90vw;
    }
    .div-contact-form-left {
        font-size: medium;
    }
}