@media screen and (max-width: 767px){
    #menuinsta > div > div > div > li.slick-slide:nth-child(1) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/1.png");
    }   
    #menuinsta > div > div > div > li.slick-slide:nth-child(2) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/1.png");
    }
    #menuinsta > div > div > div > li.slick-slide:nth-child(3) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/2.png"); 
    }
    #menuinsta > div > div > div > li.slick-slide:nth-child(4) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/3.png");
    }
    #menuinsta > div > div > div > li.slick-slide:nth-child(5) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/4.png");
    }
    #menuinsta > div > div > div > li.slick-slide:nth-child(6) > a:before {
    background-image: url("https://cdn.awsli.com.br/2776/2776602/arquivos/5.png");
    }