注释上的CSS未知输入

Question

I am working on a project on codepen, but I keep getting the same css error on a comment at the beginning. Keep in mind most of this is not my code, just I saw it and wanted to make it interactive, so I forked it. Here is the link to the pen: https://codepen.io/rjacoby/pen/xXMbeQ?editors=0100

/* 60 column grid. */
/* 1u key (standard keysize) = 4 columns */
@import url("https://fonts.googleapis.com/css?family=Lato:400,400i,700");

The error happens between lines 1 and 2, or after 3 if I delete the first two. Also this worked a couple of minutes ago and I haven't changed anything. Here is the error: <css input>:21:3: Unknown word

Answer 1

I found my error, a missing colon on line 21. Just a simple syntax error, but I could not find it for some reason earlier. Taking a break helped.