@smui/textfield/helper-text/bare.css

Svelte Material UI - Text Field

.mdc-text-field-helper-text {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  font-family: Roboto, sans-serif;
  /* @alternate */
  font-family: var(--mdc-typography-caption-font-family, var(--mdc-typography-font-family, Roboto, sans-serif));
  font-size: 0.75rem;
  /* @alternate */
  font-size: var(--mdc-typography-caption-font-size, 0.75rem);
  line-height: 1.25rem;
  /* @alternate */
  line-height: var(--mdc-typography-caption-line-height, 1.25rem);
  font-weight: 400;
  /* @alternate */
  font-weight: var(--mdc-typography-caption-font-weight, 400);
  letter-spacing: 0.0333333333em;
  /* @alternate */
  letter-spacing: var(--mdc-typography-caption-letter-spacing, 0.0333333333em);
  text-decoration: inherit;
  /* @alternate */
  text-decoration: var(--mdc-typography-caption-text-decoration, inherit);
  text-transform: inherit;
  /* @alternate */
  text-transform: var(--mdc-typography-caption-text-transform, inherit);
  display: block;
  margin-top: 0;
  /* @alternate */
  line-height: normal;
  margin: 0;
  opacity: 0;
  will-change: opacity;
  transition: opacity 150ms 0ms cubic-bezier(0.4, 0, 0.2, 1);
}
.mdc-text-field-helper-text::before {
  display: inline-block;
  width: 0;
  height: 16px;
  content: "";
  vertical-align: 0;
}

.mdc-text-field-helper-text--persistent {
  transition: none;
  opacity: 1;
  will-change: initial;
}