问在CSS网格中创建一行，跨越所有列

EN

<fieldset>
  <legend>Personal Details</legend>
  <label class="field__label" for="first-names">
            First names
        </label>
  <input class="form__entry" id="first-names" type="text" name="firstName">
  <span class="form__feedback form__instructions">
            Must only use letters, spaces, hyphens and apostrophes
        </span>
</fieldset>

form {
    display: grid;
    grid-template-columns: minmax(100px, max-content) minmax(200px, max-content) minmax(200px,1fr);
    grid-gap: 10px;
}

fieldset {
    display: contents;
}