.receita form label{ width: 100% ;margin-right: 0}

@media(min-width:65em){
    #modal-form {
        width: 90% !important;
    }
    .receita form label:nth-child(1){ width: 35%}
    .receita form label:nth-child(2){ width: 15%}
    .receita form label:nth-child(3){ width: 15%; }
    .receita form label:nth-child(4){ width: 15%; margin-right: 20px}

}