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: 20px;
15 user-select: none;
16}
17
18/* Create a custom checkbox */
19.checkmark {
20 position: relative;
21 top: 0;
22 left: 0;
23 height: 1.4em;
24 width: 1.4em;
25 border: 2px solid #2196F3;
26 border-radius: 1rem 0rem 1rem;
27 transform: rotate(45deg);
28 transition: all .5s ease-in-out;
29}
30
31/* When the checkbox is checked, add a blue background */
32.container input:checked ~ .checkmark {
33 box-shadow: 0px 0px 40px 5px #2196F3;
34 border-radius: 1rem 0rem 1rem;
35 background-color: #2195f31f;
36}
37
38/* Create the checkmark/indicator (hidden when not checked) */
39.checkmark:after {
40 content: "";
41 position: absolute;
42 display: none;
43}
44
45/* Show the checkmark when checked */
46.container input:checked ~ .checkmark:after {
47 display: block;
48}
49
50/* Style the checkmark/indicator */
51.container .checkmark:after {
52 left: 0.35em;
53 top: 0.20em;
54 width: 0.25em;
55 height: 0.5em;
56 border: solid #2196F3;
57 border-width: 0 0.15em 0.15em 0;
58 transform: rotate(-5deg);
59 animation: upAnimate 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
60}
61
62@keyframes upAnimate {
63 from {
64  transform: translate(-20px, -20px) rotate(-5deg);
65  opacity: 0;
66 }
67
68 to {
69  transform: translate(0, 0) rotate(-5deg);
70  opacity: 1;
71 }
72}