.exp-variant-b {
  display: none;
}

/* Before assignment: hide A so it doesn't flash while the script loads */
html:not([data-exp-homepage]) .exp-variant-a {
  visibility: hidden;
}

html[data-exp-homepage="A"] .exp-variant-a {
  visibility: visible;
}

html[data-exp-homepage="B"] .exp-variant-b {
  display: block;
}

html[data-exp-homepage="B"] .exp-variant-a {
  display: none;
}