@media (max-width: 767px) {
    #page3_title {
        height: 80px !important;
        font-size: 30px !important;
    }
}

.contain {
    display: flex;
    flex-direction: column;
}

img {
    width: 100%;
    font-size: 0;
}

#page3_title {
    width: 100%;
    height: 300px;
    font-size: 70px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgb(240, 240, 240);
}