@media only screen and (max-width: 1600px) and (min-width: 769px) {
    .wrapper2{
        width: 400px;
    }
    
    .img-border {
        padding: 5px;
        margin: 5px;
    }
    
    .intro {
        height: 1600px;
        max-height: 1600px;
    }
}

@media only screen and (max-width: 768px) and (min-width: 500px) {
    
    .wrapper2{
        width: 400px;
    }
    
    .img-border {
        padding: 5px;
        margin: 5px;
    }
    
    .d3mustext {
        font-size: 18px;
    }
    
    .text {
        font-size: 16px;
    }
    
    .logo {
        width: 70px;
        height: 106px;
    }
    
    .obr {
        width: 91px;
        height: 71px;
    }
    
    .maintext h1 {
        font-size: 18px;
        margin-bottom: 45px;
    }
    
    .maintext h2 {
        font-size: 18px;
        margin-bottom: 25px;
    }
    
    .maintext h3 {
        font-size: 18px;
    }
    
    .intro {
        height: 1900px;
        max-height: 1900px;
    }
}

@media only screen and (max-width: 500px) {
    .wrapper2{
        width: 200px;
    }
    
    .img-bor {
    width: 120px;
    height: 160px;
}

    .img-border {
    width: 160px;
    height: 120px;
    }
}

.d3mustext {
        font-size: 18px;
    }
    
    .text {
        font-size: 16px;
    }
    
    .logo {
        width: 70px;
        height: 106px;
    }
    
    .obr {
        width: 91px;
        height: 71px;
    }

@media only screen and (max-width: 470px) and (min-width: 375px) {
    .d3mustext {
        font-size: 14px;
    }
    
    .text {
        font-size: 10px;
    }
    
    .logo {
        width: 50px;
        height: 86px;
    }
    
    .obr {
        width: 71px;
        height: 51px;
    }
    
    .maintext h1 {
        font-size: 18px;
        margin-bottom: 45px;
    }
    
    .maintext h2 {
        font-size: 18px;
        margin-bottom: 25px;
    }
    
    .maintext h3 {
        font-size: 18px;
    }
    
    .arrow {
      width: 32px;
      height: 32px;
      }
  
    .arrow img{
      width: 32px;
      height: 32px;
  }
}