Adding a constant Button

Site URL: https://sturgeon-goby-y5ad.squarespace.com/config/

I have followed the guide for brad goods for the multilanguage setup and have gotten it to work i was just wondering if its possible to make the language switcher constant as you scroll like the header can the language switcher be part of the header? 

edit this code

.language {
    color: #fff;
    position: absolute;
    top: 10px;
    right: 80px;
    z-index: 99999;
}

to this

.language {
    color: #fff;
    position: fixed;
    top: 10px;
    right: 80px;
    z-index: 99999;
}