@media only screen and (max-width: 600px){
    .col-33{
        width: 100%;
    }
    .col-50{
        width: 100%;
    }
    .col-25{
        width: 100%;
    }
    .col-50 img{
        width: 100%;
        margin-top: 15px;
    }
    .d-flex{
        display: inline-block;
    }
    /* top-header */
   
    .top-header .col-50{
        width: 50%;
        font-size: 10px;
    }
    
    /* banner */
    .banner .contents h1{
        font-size: 40px;
    }
    
    .banner ul li a{
        font-size: 14px;
    }
 

    .banner .barsbtn{
        display: block;
        
    }
    .banner nav ul li{
        display: block;
        margin: 8px 0;
    }
    .banner ul{
        position: fixed;
        width: 100%;
        height: 100vh;
        top: 100px;
        left: -110%;
        transition: all 0.5s;
        text-align: center;
        background-color:rgba(0, 0, 0,0.5);
        z-index: 3;
        padding: 0;
        padding-top: 10px;
        
        
    }
    #check:checked ~ ul{
        left: 0;
    }
    .banner .barsbtn{
        float: right;
        color:  #fff;
    }
    
    /* about */
    .about{
        text-align: center;
        
    }
    .about .aboutcontent h4{
        margin: 0 auto;
    }
    .about .aboutcontent p{
        text-align: justify;
        margin: 0 auto;
        padding: 10px 0;
        
    }
    /* footer2 */
    .footer2 .col-50{
        width: 50%;
        font-size: 10px;
    }


}