css底部

 

 

 

 

1. background: #b04646;
2. background-image: linear-gradient(180deg, #b04646 0%, #b04646 100%);
3. position: relative;
4. width: 160%;
5. left: -30%;
6. top: 0;
7. z-index: -1;
8. border-radius: 0 0 50% 50%;
9. height: 55vw;