
        -webkit-transition: -webkit-transform 0.25s;
        transition: transform 0.25s;

        @apply(--paper-transition-easing);
      }

      .underline.is-invalid .focused-line {
        border-color: var(--paper-input-container-invalid-color, --error-color);
        -webkit-transform: none;
        transform: none;
        -webkit-transition: -webkit-transform 0.25s;
        transition: transform 0.25s;

        @apply(--paper-transition-easing);
      }

      .unfocused-line {
        @apply(--l