.btn {
    width: 100px;
}

.rating {

}

    /* :not(:checked) is a filter, so that browsers that don’t support :checked don’t 
      follow these rules. Every browser that supports :checked also supports :not(), so
      it doesn’t make the test unnecessarily selective */
    .rating:not(:checked) > input {
        position: absolute;
        top: -9999px;
        clip: rect(0,0,0,0);
    }

    .rating:not(:checked) > label {
        float: right;
        width: 1em;
        /* padding:0 .1em; */
        overflow: hidden;
        white-space: nowrap;
        cursor: pointer;
        font-size: 300%;
        /* line-height:1.2; */
        color: #ddd;
    }

        .rating:not(:checked) > label:before {
            content: '★ ';
        }

    .rating > input:checked ~ label {
        color: #0094ff;
    }

    .rating:not(:checked) > label:hover,
    .rating:not(:checked) > label:hover ~ label {
        color: #0094ff;
    }

    .rating > input:checked + label:hover,
    .rating > input:checked + label:hover ~ label,
    .rating > input:checked ~ label:hover,
    .rating > input:checked ~ label:hover ~ label,
    .rating > label:hover ~ input:checked ~ label {
        color: #0094ff;
    }

    .rating > label:active {
        position: relative;
        top: 2px;
        left: 2px;
    }