Checkbox by gagan-gv

1/* Hide the default checkbox */
2.container input {
3 position: absolute;
4 opacity: 0;
5 cursor: pointer;
6 height: 0;
7 width: 0;
8}
9
10.container {
11 display: block;
12 position: relative;
13 cursor: pointer;
14 font-size: 25px;
15 user-select: none;
16}
17
18/* Create a custom checkbox */
19.checkmark {
20 position: relative;
21 top: 0;
22 left: 0;
23 height: 1.3em;
24 width: 1.3em;
25 background: black;
26 border-radius: 50px;
27 transition: all 0.7s;
28 --spread: 20px;
29}
30
31/* When the checkbox is checked, add a blue background */
32.container input:checked ~ .checkmark {
33 background: black;
34 box-shadow: -10px -10px var(--spread) 0px #5B51D8, 0 -10px var(--spread) 0px #833AB4, 10px -10px var(--spread) 0px #E1306C, 10px 0 var(--spread) 0px #FD1D1D, 10px 10px var(--spread) 0px #F77737, 0 10px var(--spread) 0px #FCAF45, -10px 10px var(--spread) 0px #FFDC80;
35}
36
37/* Create the checkmark/indicator (hidden when not checked) */
38.checkmark:after {
39 content: "";
40 position: absolute;
41 display: none;
42}
43
44/* Show the checkmark when checked */
45.container input:checked ~ .checkmark:after {
46 display: block;
47}
48
49/* Style the checkmark/indicator */
50.container .checkmark:after {
51 left: 0.45em;
52 top: 0.25em;
53 width: 0.25em;
54 height: 0.5em;
55 border: solid #f0f0f0;
56 border-width: 0 0.15em 0.15em 0;
57 transform: rotate(45deg);
58}