input.custom-file-input:focus, input.custom-file-input:active {
    outline: none !important;
    border: none !important;
    box-shadow: none !important;
}
.custom-file:focus, .custom-file-input:active {
    outline: none !important;
    border: none !important;
    box-shadow: none !important;
}
.custom-file-input:focus~.custom-file-label {
    border-color: #4588ee;
    box-shadow: none;
}

.custom-file-input.is-invalid:focus~.custom-file-label {
    box-shadow: none;
}

.custom-file-label::after {

}

.input-group > .custom-file:not(:last-child) .custom-file-label, .input-group > .custom-file:not(:last-child) .custom-file-label::after {
    border-top-right-radius: 0.2rem;
    border-bottom-right-radius: 0.2rem;
}

.custom-file-input:lang(en) ~ .custom-file-label::after {
    content: "\f07c";
    font-family: 'Font Awesome\ 5 Free';
    font-weight: 600;
    background-color: #4588ee;
    color: #fff
}