1button {
2  min-height: 53px;
3  min-width: 166px;
4  display: -webkit-box;
5  display: -ms-flexbox;
6  display: flex;
7  -webkit-box-align: center;
8  -ms-flex-align: center;
9  align-items: center;
10  -ms-flex-pack: distribute;
11  justify-content: space-around;
12  position: relative;
13  cursor: pointer;
14  background: -webkit-gradient(linear, left top, right top, color-stop(-12.74%, rgba(110, 239, 255, .5)), color-stop(56.76%, rgba(106, 224, 255, .271)));
15  background: linear-gradient(90deg, rgba(110, 239, 255, .5) -12.74%, rgba(106, 224, 255, .271) 56.76%);
16  border: 2px solid #acf7ff;
17  color: #FFFFFF;
18  font-size: 18px;
19  font-weight: 600;
20}
21
22button:before {
23  content: "";
24  width: 4px;
25  height: 28px;
26  background: #19173b;
27  border: 2px solid #acf7ff;
28  -webkit-transform: rotate(-45deg);
29  -ms-transform: rotate(-45deg);
30  transform: rotate(-45deg);
31  position: absolute;
32  border-top: 0;
33  border-left: 0;
34  border-bottom: 0;
35  bottom: -7px;
36  left: 4px;
37  border-bottom-left-radius: 10px;
38  border-top-left-radius: 10px;
39}
40
41button:after {
42  content: "";
43  position: absolute;
44  left: -2px;
45  bottom: -2px;
46  border-top: 15px solid transparent;
47  border-left: 15px solid #fffcf7;
48}