1button {
2  transition: all 0.5s;
3  font-size: 17px;
4  padding: 1ch 2ch;
5  background-color: white;
6  color: #000;
7  font-family: Roboto, sans-serif;
8  border: none;
9  border-radius: 2px;
10  box-shadow: 2px 2px 0px hsl(0, 0%, 90%),
11    4px 4px 0px hsl(0, 0%, 80%),
12    6px 6px 0px hsl(0, 0%, 70%),
13    8px 8px 0px hsl(0, 0%, 60%),
14    10px 10px 0px hsl(0, 0%, 50%),
15    12px 12px 0px hsl(0, 0%, 40%),
16    14px 14px 0px hsl(0, 0%, 30%),
17    16px 16px 0px hsl(0, 0%, 20%),
18    18px 18px 0px hsl(0, 0%, 10%);
19}
20
21button:hover {
22  background-color: hsl(0, 0%, 50%);
23  color: #fff;
24  box-shadow: none;
25}