/* This CSS for small Mobile*/
@media screen and (max-width: 767px) {
.second_img {width:70%;}
.first_img {width:70%;}
}

/* This CSS for Tablet */
@media screen and(min-width: 768px) {

.second_img {width:70%;}
.first_img {width:70%;}
}

/* This CSS for Medium Devices */
@media screen and (min-width: 992px) {

}

/* This CSS for Large Devices */
@media screen and(min-width: 1200px) {

}