@media screen and (max-width:1000px){
    .des_price {
        float: left;
        margin-left: 150px;
    }
}
@media screen and (max-width:540px) {
    .des_price {
        float: left;
        margin-left: 120px;
    }
    .add{
        margin-top:-50px;
    }
}
@media screen and (max-width: 760px) {
    #example_filter, #example_length, #example_info, #example_paginate {
        float: left;
    }
}