Button by adamgiebl

1button {
2  --purple: #9B7EDA;
3  font-size: 18px;
4  padding: 0.8em 3em;
5  letter-spacing: 0.08em;
6  position: relative;
7  font-family: inherit;
8  border-radius: 0.6em;
9  overflow: hidden;
10  transition: all 0.3s;
11  line-height: 1.4em;
12  border: 2px solid var(--purple);
13  background: linear-gradient(to right, rgba(155, 126, 218, 0.1) 1%, transparent 40%, transparent 60%, rgba(155, 126, 218, 0.1) 100%);
14  color: var(--purple);
15  box-shadow: inset 0 0 10px rgba(155, 126, 218, 0.4), 0 0 9px 3px rgba(155, 126, 218, 0.1);
16}
17
18button:hover {
19  color: #BFA3F3;
20  box-shadow: inset 0 0 10px rgba(155, 126, 218, 0.6), 0 0 9px 3px rgba(155, 126, 218, 0.2);
21}
22
23button:before {
24  content: "";
25  position: absolute;
26  left: -4em;
27  width: 4em;
28  height: 100%;
29  top: 0;
30  transition: transform .4s ease-in-out;
31  background: linear-gradient(to right, transparent 1%, rgba(155, 126, 218, 0.1) 40%, rgba(155, 126, 218, 0.1) 60%, transparent 100%);
32}
33
34button:hover:before {
35  transform: translateX(15em);
36}