.bao {
    width: calc(100% - 40px);
    /*height: 700px;*/
    position: relative;
    margin-top: 100px;
    margin-left: 20px;
    margin-bottom:30px;
    display: flex;
    align-items: center;
}

.bao-right{
    padding-left: 20px;
}

.containers {
    width: 50%;
    height: 440px;
    /*height: 700px;*/
}

.title {
    width: 100%;
    height: 60px;
    line-height: 60px;
    font-size: 20px;
    color: #333;
    text-align: left;
}

.tishi {
    width: 100%;
    /*height: 30px;*/
    font-size: 14px;
    line-height: 30px;
    color: #333;
    text-align: left;
}

.iphone {
    width: 100%;
    height: auto;
    font-size: 14px;
    color: #333;
    text-align: left;
}