.box_link{
    display: block;
    margin:-140px auto 140px auto;
    padding:0;
    position: relative;
}
.box_link a{
    display: block;
    margin: 0 0 0 35px;
    padding: 0;
    width: 155px;
    height: 40px;
    text-align: left;
}
@media screen and (max-width: 767px) {
    .box_link{
        margin: -22% auto 18% auto;
    }
    .box_link a {
        margin: 0 0 0 7%;
        padding: 0;
        width: 20%;
        height: 6vw;
    }
}