Card reappears in center of screen

[GirkovArpa]

After sliding left off the screen, sometimes (unpredictably) the card will reappear for a brief instant in the center of the screen before the new card slides in from the left.

I presume this is a desynchronization between CSS framerate and JavaScript ticks.

[4silvertooth]

If you reduce this time here

slidercards/main.js

Line 79 in bb11d3c

await seconds(1.3);

It won't popup but I am still looking into it. After the keyframes are over it jumps back to the start of animation that's the problem.