How to add a static block to the main content of a product page in Magento 2

This one is really handy. You may be wondering how to get a banner or block of text to the top of a product page in Magento 2. 

1. Create the static block you want to add after the image. When asked to give the block an identifier add something unique this will replace block_indentifier_here in the code below. 
2. Use this code to add the block remembering to change the block identifier and giving the layout update a namespace such as custom.image.after

<referenceContainer name="main">  
            <block class="Magento\Cms\Block\Block" name="block_namespace_here" before="-">
                <arguments>
                    <argument name="block_id" xsi:type="string">block_indentifier_here </argument>
                </arguments>
            </block>
</referenceContainer>

Before

After

Uses for adding a static block top the top of a product page in Magento 2

• Great for adding promo banners on products
• If you don’t have a banner plugin with rules that can focus tight enough you can manually select a page
• Handy for doing cross sales when you want to use a banner instead of products (although you could add products this same way)
• Use the bulk attribute editor to add a layout update to the top of big selection of page
• Great for holiday messages