.greeting_text {
    width: 100%;
}

/* 社長写真 */
.president_photo {
    float: right;
    width: 40%;
    margin: 0 0 4% 4%;
}

.president_photo img {
    display: block;
    width: 100%;
    margin-bottom: 8px;
}

.president_photo a {
    display: block;
    font-size: 90%;
    text-align: center;
    text-decoration: underline;
}

.president_photo span {
    display: block;
    width: 100%;
    font-size: 50%;
    text-align: center;
    color: rgba(0, 0, 0, 0.5);
}

@media screen and (max-width:768px) {
    .greeting_text_box {
        width: 100%;
        margin: 0 auto;
    }

    .sp .president_photo {
        width: 100%;
        margin: 0 auto 8px;
        border-radius: 5px;
    }
}