From the layout below, how to put the four blocks in four columns ?
<?xml version="1.0" ?>
<layout xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_layout.xsd">
<update handle="empty"/>
<referenceContainer name="page.wrapper">
<block class="Magento\Framework\View\Element\Template" name="test1" template="Magento_Theme::test.phtml" />
<block class="Magento\Framework\View\Element\Template" name="test2" template="Magento_Theme::test.phtml" />
<block class="Magento\Framework\View\Element\Template" name="test3" template="Magento_Theme::test.phtml" />
<block class="Magento\Framework\View\Element\Template" name="test4" template="Magento_Theme::test.phtml" />
</referenceContainer>
</layout>