How to align nav bar elements and button on the top of the logo ?

Site URL: https://www.haute-renommee-gallery.com/

Hello! 
I'd like to align all the elements of the nav bar on the top of the logo. For now, it only works with the navigation elements but I can't apply it on the menu button (screenshot attached)

I used this code : 

/* Align nav */
.header-title-nav-wrapper {
    align-items: flex-start;
}
 

I appreciate any help 🙂 
Thank you!

Try this code

.header-display-desktop {
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
}
.header-title-nav-wrapper {
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
}

Yeah! It works!
Thank you so much @tuanphan