This code should add in Elementor cutom CSS & logoimage should add into custom CSS classes box

Shrink Sticky Menu (shrink the logo) Using Elementor & Astra Free

.logoimage {
max-width: 180px;
width: 180px;
transition: 0.5s all ease-in-out;
}

.elementor-sticky--effects .logoimage {
max-width: 90px;
width: 90px;
transition: 0.5s all ease-in-out;
}

Astra Free Themes: Just add this code into custom CSS

/* sticky header for transparent header version */
.main-header-bar {
 top: 0;
 position: fixed;
 width: 100%!important;
}