article.aboutus ul {
    width: 100%;
    height: auto;
    display: block;
    text-align: center;
    margin: 30px 0;
}

article.aboutus ul li {
    display: inline-block;
    list-style: none;
}

article.aboutus ul li:first-child {
    position: relative;
    width: 300px;
    height: 300px;
    background-color: #F7EFEC;
    border: solid 1px silver;
    margin-bottom: 50px;
}

article.aboutus ul li:before{
    content: ' ';
    display: inline-block;
    width: 0;
    height: 100%;
    vertical-align: middle;
}

article.aboutus ul li:last-child {
    text-align: left;
    line-height: 24px;
}

article.aboutus ul li:first-child img{
    display: inline-block;
    vertical-align: middle;
}

.introContent strong{
    font-weight: bold;
}

.introContent img{
    max-width: 100%;
}

/* ---- */


@media screen and (max-width:445px) {
    article.aboutus ul li:first-child {
        width: 100%;
    }
    article.aboutus ul li:first-child img {
        width: 80%;
        height: auto;
    }
    .introContent img{
        height: auto;
    }
}