Scaling UI With Lean Tween

Hi I'm trying to animate a panel to fill a certain area, however when I scale it, it only works with one resolution.How do I scale the panel to fit all resolutions?

Here is my code

     float targetX = 18.1f;
     float targetY = 26.0f;
     
     private void OnEnable()
     {
         Vector3 scaleTarget = new Vector3(targetX, targetY, gameObject.GetComponent<RectTransform>().localScale.z);
         
         LeanTween.scale(gameObject.GetComponent<RectTransform>(), scaleTarget, 1.0f);
         LeanTween.moveY(gameObject.GetComponent<RectTransform>(), 10, 1.001f);
     }