Hi there,
there should be a setting in your sticky plugin that adjusts the Top offset. Which would be the best way to fix the overlap problem.
Or you could try this CSS, but i am not sure how well this will work:
@media(min-width: 769px) {
#page .site-content .is-right-sidebar {
transform: translate3d(0,0,0);
transition: translate3d 0.3s ease-in ;
}
#sticky-placeholder + #page .site-content .is-right-sidebar {
transform: translate3d(0,70px,0);
}
}