Steps to Reproduce

Run the attached zul in ZKEE 9.0.0

    <library-property>
        <name>org.zkoss.zul.css.flex</name>
        <value>true</value>
    </library-property>    

Current Result

the tableLayout dont work anymore... theirs content turn invisible.

Expected Result

the tableLayout works.

Debug Information

Investigating this, I figured out if any component inside was set with v/h flex ... all turn a mess.

Workaround

Disable CSS flex in tablelayout

<tablelayout>
    <custom-attributes org.zkoss.zul.css.flex="false"/>
</tablelayout>