If you are using data elements for styling then the following rules apply:
- multiple declarations without a comma require all conditions to be met - e.g. [data-logged-in="true"][data-container-key="node-14"] will only be applied if the member is logged in and viewing node 14
- multiple declarations with a comma will apply to all instances - e.g. [data-container-key="node-14"],[data-container-key="node-18"] will affect both nodes