.titles{
    background-image: url("../picture/bt.jpg");
    width: 350px;
    height: 55px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    top: -200px;
}
.titles div{
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    width: 150px;
}