I want to add css from module to my custom cms page like this:
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<head>
<css src="Test_Customlayout::css/test.css" />
</head>
<body>
<referenceContainer name="header.container">
<block class="Magento\Cms\Block\Block" name="test" before="header">
<arguments>
<argument name="block_id" xsi:type="string">23</argument>
</arguments>
</block>
</referenceContainer>
<referenceContainer name="page.top">
<referenceBlock name="breadcrumbs" remove="true"/>
</referenceContainer>
</body>
</page>
but I've got an error like this while I'm trying to save the page:
Please correct the XML data and try again. XML declaration allowed only at the start of the document Line: 1
<?xml
,Please write<?xml version="1.0"?>
before start amlny code in x