Style Twitter feed horizontally but stack on mobile?

Site URL: https://bumblebee-chartreuse-kmxn.squarespace.com

password = rprednep   

Hello, I have found a bit of CSS code to display my Twitter feed horizontally:

.twitter-block .tweet-list {
    column-count: 3;
}
div#block-#block-yui_3_17_2_1_1607288772836_6959 {
    width: 100%;
}

And have the number of tweets to show set to "3".

This looks okay on desktop, but I want to stack tweets on mobile instead of just squishing horizontally. Hoping someone can help, thanks! 

2 hours ago, KellenMcG said:

Site URL: https://bumblebee-chartreuse-kmxn.squarespace.com

 

password = rprednep   

Hello, I have found a bit of CSS code to display my Twitter feed horizontally:

.twitter-block .tweet-list {
    column-count: 3;
}
div#block-#block-yui_3_17_2_1_1607288772836_6959 {
    width: 100%;
}

 

And have the number of tweets to show set to "3".

 

This looks okay on desktop, but I want to stack tweets on mobile instead of just squishing horizontally. Hoping someone can help, thanks! 

@media only screen and (max-width: 640px) {
  .twitter-block .tweet-list {
    column-count: 1;
  }
}

Thanks a lot!