Update Styles for landing.block.updateStyles

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Scope: landing

Who can execute the method: a user with "edit" access permission for the site

The method landing.block.updateStyles updates the CSS classes and inline styles of block elements in the draft of a page.

If the page is already published, changes will be visible to visitors after re-publishing through the interface or using the landing.landing.publication method.

Method Parameters

Required parameters are marked with *

Name `type`	Description
scope `string`	Internal scope of landings. It is not related to the REST scope `landing` in the method name. The value of `scope` must correspond to the type of site (detailed description)
lid* `integer`	Identifier of the page. The page identifier can be obtained using the landing.landing.getList method
block* `integer`	Identifier of the block in the version of the page for editing. The block identifier can be obtained using the landing.block.getlist method with the parameter `params.edit_mode = 1`. If you pass the block identifier from the published version of the page, the method may return an error
data* `object`	Object format: `{ "<selector>": { "classList": [], "affect": [], "style": {} } }` where: `<selector>` — CSS selector from the block manifest or `#wrapper`, `classList` — list of CSS classes for the element after the update, `affect` — list of CSS properties to be removed from nested elements, `style` — set of inline styles for the element itself. A detailed description of the selector value is provided below
preventHistory `boolean`	If `true` is passed, the method will not add the change to the page history. Default is `false`

Parameter data

Key
type

Description

string | array | object

CSS selector from the style section of the block manifest or the special selector #wrapper for the block wrapper.

If the same selector appears multiple times, you can specify the position using @, for example, .landing-block-node-text@1. Positions are numbered starting from 0. If the position is not specified, the method applies changes to all found elements with this selector.

The format of the value depends on the data being passed (detailed description)

The method only processes selectors that are described in the block manifest. The special selector #wrapper allows you to change the block wrapper. A list of available selectors can be obtained using the landing.block.getmanifest method.

Selector Value

Name `type`	Description
classList `array`	List of CSS classes for the element after the update. The method completely replaces the `class` attribute instead of adding classes to the current list
affect `array`	List of CSS properties to be removed from the inline styles of all nested elements of the found node. For example, `["text-align", "color"]`
style `object`	Set of inline styles for the found element in the format `{ "css-property": "value" }`. The method merges the passed values with the current `style` attribute. If the field is not passed and the element does not have a `background-image`, the current inline style remains unchanged. If `background-image` is already set, the method retains only this property and removes other inline styles

Instead of an object, you can pass a string with a single class or an array of classes directly. This format is equivalent to the classList field.

Warning

If system classes of the block, such as landing-block-node-text, are not included in classList, the element may stop being editable through the interface. The method completely replaces the class list.

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

PHP

BX24.js

PHP CRest

curl -X POST \
          -H "Content-Type: application/json" \
          -d '{
            "lid": 313,
            "block": 6134,
            "data": {
              ".landing-block-node-text": {
                "classList": [
                  "landing-block-node-text",
                  "g-color-white",
                  "text-right"
                ],
                "affect": [
                  "text-align",
                  "color"
                ],
                "style": {
                  "font-weight": "700"
                }
              }
            }
          }' \
          "https://**put.your-domain-here**/rest/**user_id**/**webhook_code**/landing.block.updateStyles.json"

curl -X POST \
          -H "Content-Type: application/json" \
          -d '{
            "lid": 313,
            "block": 6134,
            "data": {
              ".landing-block-node-text": {
                "classList": [
                  "landing-block-node-text",
                  "g-color-white",
                  "text-right"
                ],
                "affect": [
                  "text-align",
                  "color"
                ],
                "style": {
                  "font-weight": "700"
                }
              }
            },
            "auth": "**put_access_token_here**"
          }' \
          "https://**put.your-domain-here**/rest/landing.block.updateStyles.json"

try
        {
            const response = await $b24.callMethod(
                'landing.block.updateStyles',
                {
                    lid: 313,
                    block: 6134,
                    data: {
                        '.landing-block-node-text': {
                            classList: [
                                'landing-block-node-text',
                                'g-color-white',
                                'text-right'
                            ],
                            affect: [
                                'text-align',
                                'color'
                            ],
                            style: {
                                'font-weight': '700'
                            }
                        }
                    }
                }
            );
        
            const result = response.getData().result;
            console.info(result);
        }
        catch (error)
        {
            console.error(error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'landing.block.updateStyles',
                    [
                        'lid' => 313,
                        'block' => 6134,
                        'data' => [
                            '.landing-block-node-text' => [
                                'classList' => [
                                    'landing-block-node-text',
                                    'g-color-white',
                                    'text-right',
                                ],
                                'affect' => [
                                    'text-align',
                                    'color',
                                ],
                                'style' => [
                                    'font-weight' => '700',
                                ],
                            ],
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . var_export($result, true);
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error updating block styles: ' . $e->getMessage();
        }

BX24.callMethod(
            'landing.block.updateStyles',
            {
                lid: 313,
                block: 6134,
                data: {
                    '.landing-block-node-text': {
                        classList: [
                            'landing-block-node-text',
                            'g-color-white',
                            'text-right'
                        ],
                        affect: [
                            'text-align',
                            'color'
                        ],
                        style: {
                            'font-weight': '700'
                        }
                    }
                }
            },
            function(result)
            {
                if (result.error())
                {
                    console.error(result.error());
                }
                else
                {
                    console.info(result.data());
                }
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'landing.block.updateStyles',
            [
                'lid' => 313,
                'block' => 6134,
                'data' => [
                    '.landing-block-node-text' => [
                        'classList' => [
                            'landing-block-node-text',
                            'g-color-white',
                            'text-right',
                        ],
                        'affect' => [
                            'text-align',
                            'color',
                        ],
                        'style' => [
                            'font-weight' => '700',
                        ],
                    ],
                ],
            ]
        );
        
        if (isset($result['error']))
        {
            echo 'Error: ' . $result['error_description'];
        }
        else
        {
            echo '<pre>';
            print_r($result['result']);
            echo '</pre>';
        }

Response Handling

HTTP Status: 200

{
            "result": true,
            "time": {
                "start": 1774520356,
                "finish": 1774520356.142134,
                "duration": 0.1421339511871338,
                "processing": 0,
                "date_start": "2026-03-26T13:19:16+02:00",
                "date_finish": "2026-03-26T13:19:16+02:00",
                "operating_reset_at": 1774520956,
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `boolean`	Result of the style update. Upon successful execution, the method returns `true`
time `time`	Information about the execution time of the request

Error Handling

HTTP Status: 400

{
            "error": "BLOCK_NOT_FOUND",
            "error_description": "Block not found"
        }

Name `type`	Description
error `string`	String error code. It may consist of digits, Latin letters, and underscores
error_description `error_description`	Textual description of the error. The description is not intended to be shown to the end user in its raw form

Possible Error Codes

Code	Description
`MISSING_PARAMS`	Required parameter `lid`, `block`, or `data` is missing
`ACCESS_DENIED`	Insufficient permissions to edit the site
`LANDING_NOT_EXIST`	Page with identifier `lid` not found or not accessible to the current user
`BLOCK_NOT_FOUND`	Block with identifier `block` not found on page `lid` or not accessible in the version of the page for editing
`TYPE_ERROR`	Incorrect type of one of the method parameters, for example, `data` in an unsuitable format

Statuses and System Error Codes

HTTP Status: 20x, 40x, 50x

The errors described below may occur when calling any method.

Status	Code Error Message	Description
`500`	`INTERNAL_SERVER_ERROR` Internal server error	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`500`	`ERROR_UNEXPECTED_ANSWER` Server returned an unexpected response	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`503`	`QUERY_LIMIT_EXCEEDED` Too many requests	The request intensity limit has been exceeded
`405`	`ERROR_BATCH_METHOD_NOT_ALLOWED` Method is not allowed for batch usage	The current method is not permitted for calls using batch
`400`	`ERROR_BATCH_LENGTH_EXCEEDED` Max batch length exceeded	The maximum length of parameters passed to the batch method has been exceeded
`401`	`NO_AUTH_FOUND` Wrong authorization data	Invalid access token or webhook code
`400`	`INVALID_REQUEST` Https required	The HTTPS protocol is required for method calls
`503`	`OVERLOAD_LIMIT` REST API is blocked due to overload	The REST API is blocked due to overload. This is a manual individual block; please contact Bitrix24 technical support to lift it
`403`	`ACCESS_DENIED` REST API is available only on commercial plans	The REST API is only available on commercial plans
`403`	`INVALID_CREDENTIALS` Invalid request credentials	The user associated with the access token or webhook used to call the method lacks the necessary permissions
`404`	`ERROR_MANIFEST_IS_NOT_AVAILABLE` Manifest is not available	The manifest is not available
`403`	`insufficient_scope` The request requires higher privileges than provided by the webhook token	The request requires higher privileges than those provided by the webhook token
`401`	`expired_token` The access token provided has expired	The provided access token has expired
`403`	`user_access_error` The user does not have access to the application	The user does not have access to the application. This means that the application is installed, but the portal administrator has restricted access to this application to specific users only
`500`	`PORTAL_DELETED` Portal was deleted	The public part of the site is closed. To open the public part of the site on an on-premise installation, disable the "Temporary closure of the public part of the site" option. Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site

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Method ParametersMethod Parameters

Parameter dataParameter data

Selector ValueSelector Value

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

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