1input {
2  width: 210px;
3  height: 50px;
4  padding: 0 16px;
5  background: transparent;
6  border-radius: 4px;
7  border: 1px solid #fe4567;
8  color: #f9f9f9;
9  animation: shake_541 0.14s 3;
10}
11
12input:valid {
13  border-color: #45feaf;
14  animation: none;
15}
16
17@keyframes shake_541 {
18  0%, 100% {
19    translate: 0;
20  }
21
22  25% {
23    translate: 8px 0;
24  }
25
26  75% {
27    translate: -8px 0;
28  }
29}