#px-rem-converter .nvb-feedback.is-error {
  color: #a52f39;
  font-weight: 700;
}

#custom-gradient-generator .nvb-feedback.is-error {
  color: #c0392b;
  font-weight: 700;
}

#custom-stripe-generator .nvb-feedback.is-error {
  color: #c0392b;
  font-weight: 700;
}

#custom-dot-generator .nvb-feedback.is-error {
  color: #c0392b;
  font-weight: 700;
}

#custom-glassmorphism-generator .nvb-feedback.is-error {
  color: #c0392b;
  font-weight: 700;
}

#custom-css-button-generator .nvb-feedback.is-error {
  color: #c0392b;
  font-weight: 700;
}

#aspect-ratio-app .nvb-feedback.is-error {
  color: #a33a2d;
  font-weight: 700;
}

#color-palette-generator .nvb-feedback.is-error {
  color: #fff;
  font-weight: 700;
}

#custom-css-loading-generator .nvb-feedback.is-error {
  color: #b91c1c;
  font-weight: 700;
}

#unit-conv-app .nvb-feedback.is-error {
  color: #8c3a2c;
  font-weight: 700;
}

#subnet-calc-app .nvb-feedback.is-error {
  color: #8c3a2c;
  font-weight: 700;
}

#number-base-converter .nvb-feedback.is-error {
  color: #b91c1c;
  font-weight: 700;
}