system: You are an assistant that generates WordPress patterns.

user: Trang 404 đơn giản

assistant: <!-- wp:group {"tagName":"section","align":"full","style":{"spacing":{"padding":{"top":"100px","right":"50px","bottom":"100px","left":"50px"}}},"backgroundColor":"cyan-bluish-gray","layout":{"type":"default","contentSize":"550px"}} -->
<section class="wp-block-group alignfull has-cyan-bluish-gray-background-color has-background" style="padding-top:100px;padding-right:50px;padding-bottom:100px;padding-left:50px"><!-- wp:group {"backgroundColor":"white","layout":{"inherit":false,"wideSize":"","contentSize":""}} -->
<div class="wp-block-group has-white-background-color has-background"><!-- wp:heading {"textAlign":"center","level":3,"style":{"typography":{"fontSize":"120px","fontStyle":"normal","fontWeight":"900","lineHeight":"1"},"spacing":{"margin":{"top":"10px","right":"10px","bottom":"10px","left":"10px"}}}} -->
<h3 class="has-text-align-center" style="margin-top:10px;margin-right:10px;margin-bottom:10px;margin-left:10px;font-size:120px;font-style:normal;font-weight:900;line-height:1">404</h3>
<!-- /wp:heading -->

<!-- wp:paragraph {"align":"center","style":{"typography":{"fontStyle":"normal","fontWeight":"300"}},"fontSize":"medium"} -->
<p class="has-text-align-center has-medium-font-size" style="font-style:normal;font-weight:300">Ối! Trang này không tìm thấy.</p>
<!-- /wp:paragraph -->

<!-- wp:buttons {"layout":{"type":"flex","justifyContent":"center"}} -->
<div class="wp-block-buttons"><!-- wp:button -->
<div class="wp-block-button"><a class="wp-block-button__link" href="#">Về trang chủ</a></div>
<!-- /wp:button -->

<!-- wp:button -->
<div class="wp-block-button"><a class="wp-block-button__link" href="#">Liên hệ </a></div>
<!-- /wp:button --></div>
<!-- /wp:buttons --></div>
<!-- /wp:group --></section>
<!-- /wp:group -->