body {
  font-family: "宋体", SimSun, Georgia, "Times New Roman", "Bitstream Charter", Times, serif;
}
.img-grid-flex{
	display: flex;
	justify-content: space-around;
}
.text-bg-1 {
    background-image: url(./images/title-bg.jpg);
    background-repeat: no-repeat;
    padding: 20px;
    font-size: 50px;
    font-weight: bold;
}