%input,
%textarea,
%select {
    background-color: $field-background-colour;
    color: $field-text-colour;
    border: $field-border;
    padding: $field-padding;
    width: $field-width;
}

@if $classes {
    .input {
        @extend %input;
    }

    .textarea {
        @extend %textarea;
    }

    .select {
        @extend %select;
    }
}