.box {
    margin: 0 0 25px;
    overflow: hidden;
    padding: 15px;
    border-radius: 0.5rem;
    background-color: #dddddd;
    border: 1px solid #b4b4b4;
}

@media only screen and (max-width: 640px) {
}
@media only screen and (min-width: 641px) and (max-width: 800px){

}
@media only screen and (min-width: 801px) and (max-width: 1024px){
    .box {
        width: 620px;
    }
}
@media only screen and (min-width: 1025px){
    .box {
        width: 620px;
    }
}

/* @media only screen and (min-width: 768px) {
.box {
    width: 600px;
}} */