Css :-

.checkbox-wrapper-12 {
position: relative;
}

.checkbox-wrapper-12 > svg {
position: absolute;
top: -130%;
left: -170%;
width: 110px;
pointer-events: none;
}

.checkbox-wrapper-12 * {
box-sizing: border-box;
}

.checkbox-wrapper-12 input[type="checkbox"] {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
-webkit-tap-highlight-color: transparent;
cursor: pointer;
margin: 0;
}

.checkbox-wrapper-12 input[type="checkbox"]:focus {
outline: 0;
}

.checkbox-wrapper-12 .cbx {
width: 24px;
height: 24px;
top: calc(100px - 12px);
left: calc(100px - 12px);
}

.checkbox-wrapper-12 .cbx input {
position: absolute;
top: 0;
left: 0;
width: 24px;
height: 24px;
border: 2px solid #bfbfc0;
border-radius: 50%;
}

.checkbox-wrapper-12 .cbx label {
width: 24px;
height: 24px;
background: none;
border-radius: 50%;
position: absolute;
top: 0;
left: 0;
transform: trasnlate3d(0, 0, 0);
pointer-events: none;
}

.checkbox-wrapper-12 .cbx svg {
position: absolute;
top: 5px;
left: 4px;
z-index: 1;
pointer-events: none;
}

.checkbox-wrapper-12 .cbx svg path {
stroke: #fff;
stroke-width: 3;
stroke-linecap: round;
stroke-linejoin: round;
stroke-dasharray: 19;
stroke-dashoffset: 19;
transition: stroke-dashoffset 0.3s ease;
transition-delay: 0.2s;
}

.checkbox-wrapper-12 .cbx input:checked + label {
animation: splash-12 0.6s ease forwards;
}

.checkbox-wrapper-12 .cbx input:checked + label + svg path {
stroke-dashoffset: 0;
}

@-moz-keyframes splash-12 {
40% {
background: #866efb;
box-shadow: 0 -18px 0 -8px #866efb, 16px -8px 0 -8px #866efb, 16px 8px 0 -8px #866efb, 0 18px 0 -8px #866efb, -16px 8px 0 -8px #866efb, -16px -8px 0 -8px #866efb;
}

100% {
background: #866efb;
box-shadow: 0 -36px 0 -10px transparent, 32px -16px 0 -10px transparent, 32px 16px 0 -10px transparent, 0 36px 0 -10px transparent, -32px 16px 0 -10px transparent, -32px -16px 0 -10px transparent;
}
}

@-webkit-keyframes splash-12 {
40% {
background: #866efb;
box-shadow: 0 -18px 0 -8px #866efb, 16px -8px 0 -8px #866efb, 16px 8px 0 -8px #866efb, 0 18px 0 -8px #866efb, -16px 8px 0 -8px #866efb, -16px -8px 0 -8px #866efb;
}

100% {
background: #866efb;
box-shadow: 0 -36px 0 -10px transparent, 32px -16px 0 -10px transparent, 32px 16px 0 -10px transparent, 0 36px 0 -10px transparent, -32px 16px 0 -10px transparent, -32px -16px 0 -10px transparent;
}
}

@-o-keyframes splash-12 {
40% {
background: #866efb;
box-shadow: 0 -18px 0 -8px #866efb, 16px -8px 0 -8px #866efb, 16px 8px 0 -8px #866efb, 0 18px 0 -8px #866efb, -16px 8px 0 -8px #866efb, -16px -8px 0 -8px #866efb;
}

100% {
background: #866efb;
box-shadow: 0 -36px 0 -10px transparent, 32px -16px 0 -10px transparent, 32px 16px 0 -10px transparent, 0 36px 0 -10px transparent, -32px 16px 0 -10px transparent, -32px -16px 0 -10px transparent;
}
}

@keyframes splash-12 {
40% {
background: #866efb;
box-shadow: 0 -18px 0 -8px #866efb, 16px -8px 0 -8px #866efb, 16px 8px 0 -8px #866efb, 0 18px 0 -8px #866efb, -16px 8px 0 -8px #866efb, -16px -8px 0 -8px #866efb;
}

100% {
background: #866efb;
box-shadow: 0 -36px 0 -10px transparent, 32px -16px 0 -10px transparent, 32px 16px 0 -10px transparent, 0 36px 0 -10px transparent, -32px 16px 0 -10px transparent, -32px -16px 0 -10px transparent;
}
}