.index-banner {
display: flex;
justify-content: center;
flex-direction: column;
height: 7.4em;
background: var(--index-banner) center no-repeat;
background-size: contain;
font-size: calc(100vw/19.2);
margin-top: 100px;
}
石家庄栗信科技有限公司前端外包
.index-banner {
display: flex;
justify-content: center;
flex-direction: column;
height: 7.4em;
background: var(--index-banner) center no-repeat;
background-size: contain;
font-size: calc(100vw/19.2);
margin-top: 100px;
}