.part-login {
    display: table;
    margin-left: auto;
    margin-right: auto;
}
.part-login .box-input {
    margin: 10px 0;
}
.part-login .box-input * {
    display: inline-block;
    line-height: 40px;
}
.part-login .box-input > label {
    width: 200px;
}
.part-login .box-input:not(.submit) > input,
.part-login .box-input:not(.submit) > select,
.part-login .box-input:not(.submit) > textarea,
.part-login .box-input:not(.submit) > div {
    width: 200px;
    line-height: 38px;
}
.part-login input[type=submit] {
    margin-top: 30px;
}

@media only screen and (max-width:479px) {
    .part-login {
        display:block;
    }
    .part-login .box-input > label {
        display:block;
        width: 100%;
    }
    .part-login .box-input:not(.submit) > input,
    .part-login .box-input:not(.submit) > select,
    .part-login .box-input:not(.submit) > textarea,
    .part-login .box-input:not(.submit) > div {
        width: 100%;
    }
}