.about-main {
    padding:50px 240px;
    text-align:left;
}
.about-title {
    font-size: 40px;
    font-weight:bold;
}

.about-content {
    margin-top: 16px;
}

.about-image-box {
    margin-top: 50px;
    display: flex;
    justify-content: space-around;
}

.qrcode {
    width:250px;
    height:300px;
}