h3 {
    font-size: 1.8rem;
}


@media (max-width: 770px) {
    header .container img {
        width: 30%;
    }


    nav {
        display: none;
    }

    .one,
    .two,
    .three {
        background-color: #1A202C;
        height: 5px;
        width: 100%;
        margin: 6px auto;

        transition-duration: 0.3s;
    }

    .menu-toggle {
        width: 40px;
        height: 30px;
        margin-right: 20px;

    }


    /* fullscreen */
    .menu-section.on {
        position: absolute;
        top: 0;
        left: 0;

        width: 100vw;
        height: 100vh;

        background-color: #59c167;

        z-index: 10;

        display: flex;
        justify-content: center;
        align-items: center;
    }

    .menu-section.on nav {
        display: block;
    }

    .menu-section.on .menu-toggle {
        position: absolute;
        justify-content: flex-end;
        right: 25px;
        top: 15px;
    }

    .menu-section.on .menu-toggle .one {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .menu-section.on .menu-toggle .two {
        opacity: 0;
    }

    .menu-section.on .menu-toggle .three {
        transform: rotate(-45deg) translate(8px, -9px);
    }

    .menu-section.on nav ul {
        text-align: center;
        display: block;
    }

    .menu-section.on nav ul a {
        transition-duration: 0.5s;
        font-size: 3rem;
        line-height: 4rem;
        display: block;

    }

}



@media (max-width: 350px) {

    header .container img {
        display: none;
    }

    .menu-toggle {
        margin: 20px;
    }

    .menu-section {
        margin-left: auto;
    }

    header .container {
        align-items: center;
        justify-content: flex-end;
    }

}