.about_picture_box {
    float: left;
    width: auto;
    height: auto;
    /* border: 1px solid white; */
    position: relative;
    /* margin-left: 50px; */
}

.about_picture_box>img {
    /* position: absolute; */
    width: auto;
    height: 250px;
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translateY(-50%) translateX(-50%); */
    /* border-radius: 5%; */
    margin: 20px;
}

.about_picture_label {
    text-align: center;
    opacity: 0.5;
}

.about_cn_logo {
    margin: 50px;
}

.about_cn_logo>img {
    height: 150px;
    width: auto;
    mix-blend-mode: screen;
}

.btn-contact {
    max-width: 600px;
    width: 100%;
}