chrome/browser/resources/chromeos/login/screen_error_message.html

<div id="error-message" class="step hidden show-offline-error">
  <div class="step-contents">
    <div class="error-header">
      <img alt class="error-icon" src="chrome://theme/IDR_ERROR_NETWORK_OFFLINE">
      <div id="captive-portal-title" i18n-content="captivePortalTitle"
          class="error-title
                 show-with-error-state-portal
                 show-with-error-state-offline"></div>
      <div id="login-error-title" i18n-content="loginErrorTitle"
          class="error-title
                 show-with-error-state-proxy
                 show-with-error-state-auth-ext-timeout
                 show-with-ui-state-local-state-error">
      </div>
    </div>
    <div class="error-body">
      <div id="offline-message-body"
          class="error-message-paragraph
                 show-with-error-state-offline
                 show-with-error-state-auth-ext-timeout">
        <span id="update-offline-message-text"
            i18n-content="updateOfflineMessageBody"
            class="show-with-ui-state-update"></span>
        <span id="signin-offline-message-text"
            i18n-content="signinOfflineMessageBody"
            class="show-with-ui-state-signin
                   show-with-ui-state-locally-managed"></span>
        <span id="kiosk-offline-message-text"
            i18n-content="kioskOfflineMessageBody"
            class="show-with-ui-state-kiosk-mode"></span>
      </div>
      <div id="captive-portal-message-body"
          class="error-message-paragraph
                 show-with-error-state-portal">
        <span id="captive-portal-message-text"
            class="show-with-ui-state-update
                   show-with-ui-state-signin
                   show-with-ui-state-locally-managed
                   show-with-ui-state-kiosk-mode"></span>
      </div>
      <div id="captive-portal-proxy-message-body"
          class="error-message-paragraph
                 show-with-error-state-portal
                 show-with-error-state-auth-ext-timeout">
        <span id="captive-portal-proxy-message-text"
            class="show-with-ui-state-update
                   show-with-ui-state-signin
                   show-with-ui-state-locally-managed
                   show-with-ui-state-kiosk-mode"></span>
      </div>
      <div id="proxy-message-body"
          class="error-message-paragraph
                 show-with-error-state-proxy">
        <span id="update-proxy-message-text"
            class="show-with-ui-state-update"></span>
        <span id="signin-proxy-message-text"
            class="show-with-ui-state-signin
                   show-with-ui-state-locally-managed
                   show-with-ui-state-kiosk-mode"></span>
      </div>
      <div id="offline-network-control-body"
          class="show-with-ui-state-update
                 show-with-ui-state-signin
                 show-with-ui-state-locally-managed
                 show-with-ui-state-kiosk-mode">
        <div id="offline-network-control" class="error-message-paragraph">
          <label for="offline-networks-list-dropdown"
              i18n-content="selectNetwork"
              class="offline-network-list-label
                     show-with-error-state-offline
                     show-with-error-state-proxy
                     show-with-error-state-auth-timeout"></label>
          <label for="offline-networks-list-dropdown"
              i18n-content="selectAnotherNetwork"
              class="offline-network-list-label
                     show-with-error-state-portal">
          </label>
          <div class="menu-area">
            <div id="offline-networks-list" class="menu-control"></div>
          </div>
        </div>
      </div>
      <div id="local-state-error-body"
          class="show-with-ui-state-local-state-error">
        <div i18n-content="localStateErrorText0"
            class="error-message-paragraph">
        </div>
        <div i18n-content="localStateErrorText1"
            class="error-message-paragraph">
        </div>
      </div>
      <div id="error-guest-signin" class="error-message-paragraph guest-signin">
      </div>
      <div id="error-offline-login"
          class="error-message-paragraph offline-login"></div>
    </div>
  </div>
  <div class="error-controls">
    <div id="error-message-controls" class="step-controls"></div>
  </div>
</div>