The ACM only very recently, like last month, opened up the archives: https://associationsnow.com/2022/07/the-way-things-were-why-open-access-to-the-acm-digital-

The ACM only very recently, like last month, opened up the archives: https://associationsnow.com/2022/07/the-way-things-were-why-open-access-to-the-acm-digital-library-matters/ https://associationsnow.com/2022/07/the-way-things-were-why-... I'm going to guess that there are lot of now-outdated UI elements like that.