1button {
2  width: 7vw;
3  height: 4vh;
4  border-radius: 0.5vw;
5  border: none;
6  background: rgb(0, 1, 65);
7  color: whitesmoke;
8  font-size: 1vw;
9  font-weight: 600;
10  position: relative;
11  z-index: 1;
12  overflow: visible;
13  transition: ease 0.5s;
14}
15
16button::before {
17  z-index: -1;
18  position: absolute;
19  content: "";
20  width: 2vw;
21  height: 4vh;
22  backdrop-filter: blur(3px);
23  left: calc(100% - 1.5vw);
24  top: calc(100% - 3vh);
25  border-radius: 50%;
26  background: rgba(0,0,0,0.2);
27  transition: ease 0.5s;
28}
29
30button:hover::before {
31  width: 100%;
32  height: 100%;
33  border-radius: 0.5vw;
34  top: 0;
35  left: 0;
36  transform: translateY(-0.5vh);
37}
38
39button:hover {
40  transform: translateY(0.5vh);
41}
42
43button:active::before {
44  transform: translate(0, 5%);
45}