Hide Footer button on a Specific Page

To hide footer button on a specific page, you can do this
#1. First, find Button ID.
In my example, it is: #block-yui_3_17_2_1_1729595612558_5970

#2. Find Page ID.
In my example, it is: #collection-670f90f1c3b707053b0bcac8

#3. Use this code to Website Tools > Custom CSS box.

#collection-670f90f1c3b707053b0bcac8 div#block-yui_3_17_2_1_1729595612558_5970 {
    display: none;
}

#4. If you want to hide it on Desktop Only, use this CSS code.

@media screen and (min-width:768px) {
  #collection-670f90f1c3b707053b0bcac8 div#block-yui_3_17_2_1_1729595612558_5970 {
    display: none;
}}

#5. If you want to hide it on Mobile Only, use this CSS code

@media screen and (max-width:767px) {
  #collection-670f90f1c3b707053b0bcac8 div#block-yui_3_17_2_1_1729595612558_5970 {
    display: none;
}}