index.community/frontend/src/index.css

html, body {
  margin: 0;
  padding: 50px 0 0 0;
  font-family: sans-serif;
  /*background-color: #30404D;*/
  background-color: #293742;
  height: 100%;
  font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,Icons16,sans-serif;
}

.fediverse-heading-icon {
  margin-right: 8px;
}

.fediverse-about-dialog {
  top: 100px;
}

.fediverse-instance-search-popover {
  max-height: 350px;
  min-width: 300px;
  overflow-x: hidden;
}

.fediverse-sidebar {
  position: fixed;
  top: 50px;
  bottom: 0;
  right: 0;
  min-width: 400px;
  width: 25%;
  z-index: 20;
  overflow: scroll;
  overflow-x: hidden;
  transition-property: all;
  transition-duration: .5s;
  transition-timing-function: cubic-bezier(0, 1, 0.5, 1);
}

.fediverse-sidebar.closed {
  right: -400px;
}

.fediverse-sidebar-toggle-button {
  position: absolute;
  top: 50px;
  right:400px;
  z-index: 20;
  transition-property: all;
  transition-duration: .5s;
  transition-timing-function: cubic-bezier(0, 1, 0.5, 1);
}

.fediverse-sidebar-toggle-button.closed {
  right: 0;
}

.fediverse-sidebar-table {
  width: 100%;
}

@media screen and (min-width: 1600px) {
  .fediverse-sidebar.closed {
    right: -25%;
  }

  .fediverse-sidebar-toggle-button {
    right: 25%;
  }
}