Once you get the web part ID, insert a script editor web part on the same page then click on the edit source icon in Markup section then copy paste the following code to the box.
Note: you have to modify the web part ID and change the pixels to your needs
<style type="text/css">
#WebPartWPQ2{
margin-bottom:-10px; //to push the top section form to the bottom
margin-top:-10px; //to pull the bottom section form to the top
}
</style>