.password_area {
    box-sizing: border-box;
    width:720px;
    margin:40px auto 10px;
}
.form_area {
    box-sizing: border-box;
    margin:30px auto;
    width:600px;
}
.form_area li {
    float:left;
    margin-top:15px;
}
.form_area li.label {
    content:"";
    clear:both;
    overflow:hidden;
    width:200px;
    line-height:2.3em;
}
input {
    padding:5px;
    height:30px;
    width:200px;
}
#sub_btn_area {
    content:"";
    clear:both;
    overflow:hidden;
    margin:0px auto 0px;
    padding-top:50px;
    width:600px;
    text-align:center;
}
.change_btn {
    background:#E45653;
    color:#fff;
    margin:0px 10px;
    width:200px;
    height:40px;
    border-radius:3px;
    text-align:center;
}
.contact_btn {
    background-color:#28598F;
    color:#fff;
    margin:0px 10px;
    width:200px;
    height:40px;
    border-radius:3px;
    text-align:center;
}

@media print, screen and (max-width: 760px) {
    .password_area {
        box-sizing: border-box;
        width:100%;
        padding:20px;
        margin:0px;
        font-size:0.9em;
    }
    .form_area {
        box-sizing: border-box;
        margin:20px auto 0px;
        width:100%;
    }
    .form_area li {
        float:none;
        margin:0px;
    }
    .form_area li.label {
        margin-top:10px;
    }
    #sub_btn_area {
        width:100%;
        text-align:center;
    }
    .change_btn {
        width:220px;
        height:50px;
    }
    .contact_btn {
        width:220px;
        height:50px;
        margin-top:10px;
    }
}