Card by joe-herbert

1/*Card design*/
2.card {
3  width: 200px;
4  height: 300px;
5  background: lightgray;
6  box-shadow: 0 4px 35px rgba(0, 0, 0, 0.2);
7  position: relative;
8  overflow: hidden;
9}
10
11.card > .child {
12  position: absolute;
13  top: 0;
14  left: 0;
15  width: 100%;
16  height: 100%;
17  transition: clip-path 0.6s;
18  z-index: 1;
19}
20
21.card .card-1 {
22  clip-path: polygon(0% 0%, 75% 0%, 0% 75%);
23}
24
25.card .card-1:hover {
26  clip-path: polygon(0% 0%, 170% 0%, 0% 170%);
27}
28
29.card .card-1:has(~ .card-2:hover),
30.card .card-1:has(~ .card-3:hover) {
31  clip-path: polygon(0% 0%, 15% 0%, 0% 15%);
32}
33
34.card .card-2 {
35  z-index: 0;
36}
37
38.card .card-3 {
39  clip-path: polygon(25% 100%, 100% 25%, 100% 100%);
40}
41
42.card .card-3:hover {
43  clip-path: polygon(-70% 100%, 100% -70%, 100% 100%);
44}
45
46.card .card-1:hover ~ .card-3,
47.card .card-2:hover ~ .card-3 {
48  clip-path: polygon(85% 100%, 100% 85%, 100% 100%);
49}
50
51/*Optional styles*/
52.card {
53  font: 30px Arial, Helvetica, sans-serif;
54}
55
56.card > .child {
57  /*If using background image on card children*/
58  background-size: cover;
59  background-position: center;
60  background-repeat: no-repeat;
61  transition: all 0.6s;
62}
63
64.card .card-1 {
65  background-color: #23a;
66  color: white;
67  padding-top: 30%;
68  padding-left: 20%;
69}
70
71.card .card-1:hover {
72  padding-top: 65%;
73  padding-left: 48%;
74}
75
76.card .card-2 {
77  padding-top: 65%;
78  padding-left: 48%;
79  background-color: #f16;
80}
81
82.card .card-3 {
83  padding-top: 100%;
84  padding-left: 76%;
85  background-color: #dd2;
86}
87
88.card .card-3:hover {
89  padding-top: 65%;
90  padding-left: 48%;
91}
92