.introduce_text{
    color:#372511;
    margin-top: 50px;
    margin-left: 30px;
}
.introduce_text p:first-child{
    font-size: 22px;
    font-weight: bold;
    text-shadow: 1px 1px 1px rgba(21, 35, 56, 0.55);
}
.introduce_text p:nth-child(2),.introduce_text p:nth-child(3){
    font-size: 24px;
    font-family:"Georgia";
    font-weight: bold;
    text-shadow: 1px 1px 1px rgba(21, 35, 56, 0.55);
    line-height: 17px;
}
.introduce_text p:nth-child(4){
    margin-top: 30px;
    margin-right: 30%;
}