.o-mail-RecipientsInput {
    border-bottom: 1px solid transparent;
    &:focus-within:hover {
        border-bottom-color: $input-focus-border-color;
        &:after {
            @include o-caret-down($caret-color: $input-focus-border-color);
        }
    }
    &:hover {
        border-bottom-color: $border-color;
        &:after {
            @include o-caret-down($caret-color: $border-color);
        }
    }
    .o_input {
        border: none;
    }
}