Help with dropdown

[_or]

Hi,
You can simply use an if statement, for example:

$w("#dropdownID").onClick( (event, $w) => { 
    // The dropdown has been clicked 
    if($w("#dropdownID").value === "yellow"){
          $w("#myGreenBox").collapse();
    }
    else{
          $w("#myYellowBox").collapse();
    }
} );

Good luck