text below filter css using pseudo

1.blur {
2  height: 222px;
3  position:relative;
4  font-size:40px;
5  text-align:center;
6}
7
8.blur:before {
9  content: "";
10  position: absolute;
11  top: 0;
12  left: 0;
13  right: 0;
14  bottom: 0;
15  background-color: #ccc;
16  filter: blur(5px);
17  z-index:0;
18}
19.blur span {
20  position:relative;
21  z-index:1;
22}