Свой чекбокс

Стили

.box-label input[type="checkbox"] {
    display: none;
}
.box-label {
    display: inline-block;
    margin: 5px;
    cursor: pointer;
}
#checkbox:checked + .box::before {
    content: "\f14a";
    color: #2ebdbd;
    animation: checkanimate 200ms;
}
.box::before {
    content: "\f0c8";
    font-family: "FontAwesome";
    font-weight: normal;
    font-style: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    margin-right: 5px;
    width: 1em;
    display: inline-block;
    font-size: 1.6em;
    vertical-align: top;
}
@keyframes checkanimate{
    0% {transform: scale(0);}
    90% {transform: scale(1.1);}
    100% {transform: scale(1);}
}

Код HTML

<label class="box-label">
	 <input type="checkbox" id="checkbox">
     <span class="box"></span>
    </label>