Page Break Buttons: How can I change the buttons alignment?

how can i make my next button on my first page to be aligned to the right?

I would recommend you to inject the following CSS code to your form: 

#cid_21 .form-pagebreak{

    width: 90% !important;

}

#cid_21 .form-pagebreak-next-container{

    float: right !important;

} 

Related guide: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

I hope this helps.