Annoying window

For those who visit coloribus.com
when visiting old posts, viewing becomes unavailable to "non-subscribers"
but it is enough to download the style file www.coloribus.com/@/fit/style.css and replace it with two lines ...

.col-bg { }
.col-login { }
on
.col-bg {visibility: hidden;}
.col-login {visibility: hidden;}

then in our browser (for example, in Opere) on the page we right-click, “settings for the site”, “view”, “my style sheet” indicate the new modified .css file

and the page that looked like that


It looks like this.