1.bi-icon {
2    mask-repeat: no-repeat;
3    mask-position: center;
4    mask-size: cover;
5    -webkit-mask-repeat: no-repeat;
6    -webkit-mask-position: center;
7    -webkit-mask-size: cover;
8    width: 1rem;
9    height: 1rem;
10    display:inline-block;
11}