section#mainInner .display_mail {
    margin: 4% 0 6% 2%;
    font-size: 1.125rem;
}

section#mainInner .btn {
    display: inline-block;
    width: 49%;
    height: 46px;
    margin: 5% 0 8% 0;
    padding: 9px 3%;
    font-size: 1.0rem;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    font: inherit;
    font-weight: 500;
    font-size: 16px;
    color: #fff;
    border: none;
    box-sizing: border-box;
}

section#mainInner input.btn-change-mail {
    color: #fff;
    background-color: #f0ad4e;
    border-color: #eea236;
}

section#mainInner a.btn-cancel {
    color: #000;
    border: 2px solid #ccc;
    text-align: center;
}