I have a kind of button that has the code:
<a data-scroll class="btn btn-start animated fadeInUpBig" href="">EM QUE POSSO AJUDAR?</a>
I wanted to know how to do it by the time I clicked on it, open a box from the center of the screen, animated from the range 0% to 100% for 1 second. And with an X in the upper right corner, in case you want to close, returning to what was before opening the box. (the styling of the box in CSS I do later, it may be all white anyway)