.checkbox {
    background-color: #fff;
    display: inline-block;
    height: 28px;
    margin: 0 .25em;
    width: 28px;
    border-radius: 4px;
    border: 1px solid #ccc;
    float: right
}

.checkbox span {
    display: block;
    height: 28px;
    position: relative;
    width: 28px;
    padding: 0
}

.checkbox span:after {
    -moz-transform: scaleX(-1) rotate(135deg);
    -ms-transform: scaleX(-1) rotate(135deg);
    -webkit-transform: scaleX(-1) rotate(135deg);
    transform: scaleX(-1) rotate(135deg);
    -moz-transform-origin: left top;
    -ms-transform-origin: left top;
    -webkit-transform-origin: left top;
    transform-origin: left top;
    border-right: 4px solid #fff;
    border-top: 4px solid #fff;
    content: '';
    display: block;
    height: 20px;
    left: 3px;
    position: absolute;
    top: 15px;
    width: 10px
}

.checkbox span:hover:after {
    border-color: #999
}

.checkbox input {
    display: none
}

.checkbox input:checked + span:after {
    -webkit-animation: check .8s;
    -moz-animation: check .8s;
    -o-animation: check .8s;
    animation: check .8s;
    border-color: #555
}

.checkbox input:checked + .default:after {
    border-color: #444
}

.checkbox input:checked + .primary:after {
    border-color: #2196F3
}

.checkbox input:checked + .success:after {
    border-color: #8bc34a
}

.checkbox input:checked + .info:after {
    border-color: #3de0f5
}

.checkbox input:checked + .warning:after {
    border-color: #FFC107
}

.checkbox input:checked + .danger:after {
    border-color: #f44336
}