.est-checkmark {
    flex-shrink: 0;
    appearance: none;
    border: 1px solid #DDD;
    background-color: #FFF;
    border-radius: .25rem;
}

.est-checkmark:checked  { 
    background-image: url('/isometri/svgs/checkmark.svg'); /* Replace with your downloaded file */
    background-size:cover;
    border: none!important;
    content: none!important;
    appearance: none;
}

.est-checkmark:indeterminate   { 
    background-image: url('/isometri/svgs/checkmark-minus.svg'); /* Replace with your downloaded file */
    background-size:cover;
    border: none!important;
    content: none!important;
    appearance: none;
}
.est-checkmark:checked::after {
    content: none;    
}

.est-checkmark:disabled {
    background-color: #FAFAFA!important;
}