.div-beijing {
  /* background-image: url('../images/image7.jpg');  /* 背景图路径 */
     background-size: cover; /* 让背景图自适应div大小 */
    background-repeat: no-repeat;  /* 防止背景图重复 */
    display: flex;
    flex-direction: column;
    /*justify-content: center;*/
   /* align-items: center;*/
  
   /* height: 1000px;*/
    margin: 100px 40px;
    border: 1px solid;

}
/* CSS样式用于逐渐变大的字体 */
.increasing-font {
    font-size: 58px;
    text-align: center;
    color:blue;

}
.increasing-fontjinru{
    font-size: 45px;
    text-align: center;
}
.increasing-fontshoucang{
    font-size: 35px;
    padding-left: 5px;
}
.tishi{
    font-size: 62px;
    text-align:center;
}
.yunxing{
    font-size: 52px;
    text-align:center;
}