Logo change after scroll on mobile

Hi guys, 

Site password 126lilyjoy23

I'd like to change my mobile logo after scroll, I've seen a few forums with this topic and the code hasn't worked for me, can anyone help? the logo I want after scroll: 

Hi,

What is your site url?

If 7.1, you can try this code first (Design > Custom CSS)

header#header.shrink img {
	content: url(https://static1.squarespace.com/static/5afbefefe17ba3b4ea798071/t/64c82cca25f5023e8bb30b01/1690840266206/urban-vogue-skin-&-wellness-logo-mark-color-2-rgb-900px-w-72ppi.png);
}