.ba { border-style: solid; border-width: 1px; }
.bt { border-top-style: solid; border-top-width: 1px; }
.br { border-right-style: solid; border-right-width: 1px; }
.bb { border-bottom-style: solid; border-bottom-width: 1px; }
.bl { border-left-style: solid; border-left-width: 1px; }
.bn { border-style: none; border-width: 0; }


@media (--breakpoint-not-small) {
  .ba-ns { border-style: solid; border-width: 1px; }
  .bt-ns { border-top-style: solid; border-top-width: 1px; }
  .br-ns { border-right-style: solid; border-right-width: 1px; }
  .bb-ns { border-bottom-style: solid; border-bottom-width: 1px; }
  .bl-ns { border-left-style: solid; border-left-width: 1px; }
  .bn-ns { border-style: none; border-width: 0; }
}

@media (--breakpoint-medium) {
  .ba-m { border-style: solid; border-width: 1px; }
  .bt-m { border-top-style: solid; border-top-width: 1px; }
  .br-m { border-right-style: solid; border-right-width: 1px; }
  .bb-m { border-bottom-style: solid; border-bottom-width: 1px; }
  .bl-m { border-left-style: solid; border-left-width: 1px; }
  .bn-m { border-style: none; border-width: 0; }
}

@media (--breakpoint-large) {
  .ba-l { border-style: solid; border-width: 1px; }
  .bt-l { border-top-style: solid; border-top-width: 1px; }
  .br-l { border-right-style: solid; border-right-width: 1px; }
  .bb-l { border-bottom-style: solid; border-bottom-width: 1px; }
  .bl-l { border-left-style: solid; border-left-width: 1px; }
  .bn-l { border-style: none; border-width: 0; }
}