/* 
Extra small     .col        <576px 
Small           .col-sm     =576px	
Medium          .col.md     =768px	
Large           .col.lg     =992px	
Extra large     .col.xl     =1200px 
*/

/* Extra small */
@media only screen and (max-width: 575px) {
    .about-us-img {
        width: 100%;
    }
}

/* Small */
@media only screen and (min-width: 576px) and (max-width: 767px) {
    .about-us-img {
        width: 100%;
    }
}

/* Medium */
@media only screen and (min-width: 768px) and (max-width: 991px) {
    .about-us-img {
        width: 70%;
    }
}

/* Large */
@media only screen and (min-width: 992px) and (max-width: 1199px) {
    .about-us-img {
        width: 50%;
    }
}

/* Extra Large */
@media only screen and (min-width: 1200px) {
    .about-us-img {
        width: 40%;
    }
}