@media only screen and (max-width: 768px) {
    .rice_history, .mill_history{
        padding: 0px;
    }
    .rice_history>h5, .mill_history>h5{
        font-size: 1rem;
        font-weight: normal;
    }
}

@media only screen and (max-width: 576px) {

    #about_rice>.container, #about_mill>.container{
        margin: 1rem;
    }
}