.buttons-container {
  padding-top: 10px;
  padding-bottom: 10px;
  flex-wrap: wrap;
}
.buttons-container > .btn {
  margin-left: 0;
  margin-right: 0;
}
.buttons-container > .btn:first-of-type:nth-last-of-type(n+2) {
  margin-right: 5px;
  margin-left: 0;
}
.buttons-container > .btn:last-of-type:nth-of-type(n+2) {
  margin-left: 5px;
}
.buttons-container > .btn:not(:first-of-type):not(:last-of-type) {
  margin-left: 5px;
  margin-right: 5px;
}