.maintain-sec{
    padding:60px 0;
}

.first-card{
    max-width:16.823vw;
}
.second-card{
    max-width:14.01vw;
}
.third-card{
    max-width:9.948vw;
}
.first-card > img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.second-card > img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.third-card > img{
    width:100%;
    height:100%;
    object-fit:cover;
}
@media screen and (max-width:992px){
    .first-card{
        max-width:300px;
    }
    .second-card{
        max-width:250px;
    }
    .third-card{
        max-width:150px;
    }
}
@media screen and (max-width:768px){
    .first-card{
        max-width:258px;
    }
    .second-card{
        max-width:229px;
    }
}
@media screen and (max-width:576px){
    .first-card{
        max-width:198px;
    }
    .second-card{
        max-width:158px;
    }
    .third-card{
        max-width:112px;
    }
}
@media screen and (max-width:475px){
    .first-card{
        max-width:120px;
    }
    .second-card{
        max-width:105px;
    }
    .third-card{
        max-width:78px;
    }
}
@media screen and (max-width:375px){
    .first-card{
        max-width:none;
    }
     .second-card ,.third-card{
        display:none;
    }
}