@media only screen and (max-width:768px){
    .nav-box {
        margin-bottom: 20px;
    }

    .top-banner video {
        transform: scale(6.3);
    }
.top-banner a {
    text-align: center;
    display: block;
    margin-bottom: 20px;
    font-size:10px;
}
    
    .nano-title {
        font-size: 26px;
    }
    
    .who-use {
        display: block;
    }
    
    .column-2 {
        text-align: center;
    }
    
    .column-2 {}
    
    a.navbar-brand img {
        max-width: 65vw;
    }
    
    .navbar-nav li:last-child .nav-link {
        text-align: center;
    }
    
    .find-title {
        font-size: 36px;
    }
    
    .sub-title {
        font-size: 14px;
    }
    
    .who-use h3 {
        font-size: 18px;
    }
    
    .contact-section h3 {
        font-size: 20px;
    }
    
    .nano .col-md-8 h1 {
        font-size: 18px;
    }
    
    section#whowillbenifit {overflow: hidden;}
    
    .product-2 .prod-title {
        font-size: 24px;
        margin-top: 20px;
    }
    
    .pro-desc {
        font-size: 16px;
    }
    .water-mark {
        height: auto;
    }
    .chart h2 {
        font-size: 18px;
    }
    .product .row:nth-child(even) .col-md-6:last-child {
        order: 2;
    }
    .product .row:nth-child(even) .col-md-6:first-child {
        text-align: left;
        order: 1;
    }
    .ingredients img {
        max-width: 100%;
        max-height: 655px;
        object-fit: contain;
        min-height: 200px;
    }
    .banner h1 {
        position: absolute;
        top: 29%;
        font-size: 36px;
    }
    .nano h2,.nano h3 {
        font-size: 18px;
    }
    .nano p{
        margin: 0;
    }
    section.banner img {
        height: 300px;
    }
    .w-30 {
        width: 100%
    }
}