Zurb foundation 如何在基础6中制作圆形按钮组？ 在基础5上曾经有一个“圆”类，它将按钮组转换成具有圆形的边。在基础6中如何做到这一点？

在基础6中是不可能的。这些规则与其他规则一起被完全删除，以减小文件大小。你最好的办法是将规则复制到基础6 CSS文件中，或者复制到自定义CSS文件中（这取决于你）。

这是您需要的CSS规则（直接从最新的基础5文件中得到，没有更改）：

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四舍五入按钮组实质上是分别对左侧和右侧的第一个和最后一个按钮进行四舍五入

HTML:

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只有几个简单易懂的行提供了对舍入的完全控制。

令人遗憾的是，它们删除了对舍入的本机支持。谢谢你的解决方案！不客气。许多基础5的功能已经被修剪，这就是为什么我没有切换到基础6。

.button-group {
  list-style: none;
  margin: 0;
  left: 0; }
  .button-group:before, .button-group:after {
    content: " ";
    display: table; }
  .button-group:after {
    clear: both; }
  .button-group.even-2 li {
    display: inline-block;
    margin: 0 -2px;
    width: 50%; }
    .button-group.even-2 li > button, .button-group.even-2 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-2 li:first-child button, .button-group.even-2 li:first-child .button {
      border-left: 0; }
    .button-group.even-2 li button, .button-group.even-2 li .button {
      width: 100%; }
  .button-group.even-3 li {
    display: inline-block;
    margin: 0 -2px;
    width: 33.33333%; }
    .button-group.even-3 li > button, .button-group.even-3 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-3 li:first-child button, .button-group.even-3 li:first-child .button {
      border-left: 0; }
    .button-group.even-3 li button, .button-group.even-3 li .button {
      width: 100%; }
  .button-group.even-4 li {
    display: inline-block;
    margin: 0 -2px;
    width: 25%; }
    .button-group.even-4 li > button, .button-group.even-4 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-4 li:first-child button, .button-group.even-4 li:first-child .button {
      border-left: 0; }
    .button-group.even-4 li button, .button-group.even-4 li .button {
      width: 100%; }
  .button-group.even-5 li {
    display: inline-block;
    margin: 0 -2px;
    width: 20%; }
    .button-group.even-5 li > button, .button-group.even-5 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-5 li:first-child button, .button-group.even-5 li:first-child .button {
      border-left: 0; }
    .button-group.even-5 li button, .button-group.even-5 li .button {
      width: 100%; }
  .button-group.even-6 li {
    display: inline-block;
    margin: 0 -2px;
    width: 16.66667%; }
    .button-group.even-6 li > button, .button-group.even-6 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-6 li:first-child button, .button-group.even-6 li:first-child .button {
      border-left: 0; }
    .button-group.even-6 li button, .button-group.even-6 li .button {
      width: 100%; }
  .button-group.even-7 li {
    display: inline-block;
    margin: 0 -2px;
    width: 14.28571%; }
    .button-group.even-7 li > button, .button-group.even-7 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-7 li:first-child button, .button-group.even-7 li:first-child .button {
      border-left: 0; }
    .button-group.even-7 li button, .button-group.even-7 li .button {
      width: 100%; }
  .button-group.even-8 li {
    display: inline-block;
    margin: 0 -2px;
    width: 12.5%; }
    .button-group.even-8 li > button, .button-group.even-8 li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.even-8 li:first-child button, .button-group.even-8 li:first-child .button {
      border-left: 0; }
    .button-group.even-8 li button, .button-group.even-8 li .button {
      width: 100%; }
  .button-group > li {
    display: inline-block;
    margin: 0 -2px; }
    .button-group > li > button, .button-group > li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group > li:first-child button, .button-group > li:first-child .button {
      border-left: 0; }
  .button-group.stack > li {
    display: block;
    margin: 0;
    float: none; }
    .button-group.stack > li > button, .button-group.stack > li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.stack > li:first-child button, .button-group.stack > li:first-child .button {
      border-left: 0; }
    .button-group.stack > li > button, .button-group.stack > li .button {
      border-color: rgba(255, 255, 255, 0.5);
      border-left-width: 0;
      border-top: 1px solid;
      display: block;
      margin: 0; }
    .button-group.stack > li > button {
      width: 100%; }
    .button-group.stack > li:first-child button, .button-group.stack > li:first-child .button {
      border-top: 0; }
  .button-group.stack-for-small > li {
    display: inline-block;
    margin: 0 -2px; }
    .button-group.stack-for-small > li > button, .button-group.stack-for-small > li .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.stack-for-small > li:first-child button, .button-group.stack-for-small > li:first-child .button {
      border-left: 0; }
    @media only screen and (max-width: 40em) {
      .button-group.stack-for-small > li {
        display: block;
        margin: 0;
        width: 100%; }
        .button-group.stack-for-small > li > button, .button-group.stack-for-small > li .button {
          border-left: 1px solid;
          border-color: rgba(255, 255, 255, 0.5); }
        .button-group.stack-for-small > li:first-child button, .button-group.stack-for-small > li:first-child .button {
          border-left: 0; }
        .button-group.stack-for-small > li > button, .button-group.stack-for-small > li .button {
          border-color: rgba(255, 255, 255, 0.5);
          border-left-width: 0;
          border-top: 1px solid;
          display: block;
          margin: 0; }
        .button-group.stack-for-small > li > button {
          width: 100%; }
        .button-group.stack-for-small > li:first-child button, .button-group.stack-for-small > li:first-child .button {
          border-top: 0; } }
  .button-group.radius > * {
    display: inline-block;
    margin: 0 -2px; }
    .button-group.radius > * > button, .button-group.radius > * .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.radius > *:first-child button, .button-group.radius > *:first-child .button {
      border-left: 0; }
    .button-group.radius > *,
    .button-group.radius > * > a,
    .button-group.radius > * > button,
    .button-group.radius > * > .button {
      border-radius: 0; }
    .button-group.radius > *:first-child, .button-group.radius > *:first-child > a, .button-group.radius > *:first-child > button, .button-group.radius > *:first-child > .button {
      -webkit-border-bottom-left-radius: 3px;
      -webkit-border-top-left-radius: 3px;
      border-bottom-left-radius: 3px;
      border-top-left-radius: 3px; }
    .button-group.radius > *:last-child, .button-group.radius > *:last-child > a, .button-group.radius > *:last-child > button, .button-group.radius > *:last-child > .button {
      -webkit-border-bottom-right-radius: 3px;
      -webkit-border-top-right-radius: 3px;
      border-bottom-right-radius: 3px;
      border-top-right-radius: 3px; }
  .button-group.radius.stack > * {
    display: block;
    margin: 0; }
    .button-group.radius.stack > * > button, .button-group.radius.stack > * .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.radius.stack > *:first-child button, .button-group.radius.stack > *:first-child .button {
      border-left: 0; }
    .button-group.radius.stack > * > button, .button-group.radius.stack > * .button {
      border-color: rgba(255, 255, 255, 0.5);
      border-left-width: 0;
      border-top: 1px solid;
      display: block;
      margin: 0; }
    .button-group.radius.stack > * > button {
      width: 100%; }
    .button-group.radius.stack > *:first-child button, .button-group.radius.stack > *:first-child .button {
      border-top: 0; }
    .button-group.radius.stack > *,
    .button-group.radius.stack > * > a,
    .button-group.radius.stack > * > button,
    .button-group.radius.stack > * > .button {
      border-radius: 0; }
    .button-group.radius.stack > *:first-child, .button-group.radius.stack > *:first-child > a, .button-group.radius.stack > *:first-child > button, .button-group.radius.stack > *:first-child > .button {
      -webkit-top-left-radius: 3px;
      -webkit-top-right-radius: 3px;
      border-top-left-radius: 3px;
      border-top-right-radius: 3px; }
    .button-group.radius.stack > *:last-child, .button-group.radius.stack > *:last-child > a, .button-group.radius.stack > *:last-child > button, .button-group.radius.stack > *:last-child > .button {
      -webkit-bottom-left-radius: 3px;
      -webkit-bottom-right-radius: 3px;
      border-bottom-left-radius: 3px;
      border-bottom-right-radius: 3px; }
  @media only screen and (min-width: 40.0625em) {
    .button-group.radius.stack-for-small > * {
      display: inline-block;
      margin: 0 -2px; }
      .button-group.radius.stack-for-small > * > button, .button-group.radius.stack-for-small > * .button {
        border-left: 1px solid;
        border-color: rgba(255, 255, 255, 0.5); }
      .button-group.radius.stack-for-small > *:first-child button, .button-group.radius.stack-for-small > *:first-child .button {
        border-left: 0; }
      .button-group.radius.stack-for-small > *,
      .button-group.radius.stack-for-small > * > a,
      .button-group.radius.stack-for-small > * > button,
      .button-group.radius.stack-for-small > * > .button {
        border-radius: 0; }
      .button-group.radius.stack-for-small > *:first-child, .button-group.radius.stack-for-small > *:first-child > a, .button-group.radius.stack-for-small > *:first-child > button, .button-group.radius.stack-for-small > *:first-child > .button {
        -webkit-border-bottom-left-radius: 3px;
        -webkit-border-top-left-radius: 3px;
        border-bottom-left-radius: 3px;
        border-top-left-radius: 3px; }
      .button-group.radius.stack-for-small > *:last-child, .button-group.radius.stack-for-small > *:last-child > a, .button-group.radius.stack-for-small > *:last-child > button, .button-group.radius.stack-for-small > *:last-child > .button {
        -webkit-border-bottom-right-radius: 3px;
        -webkit-border-top-right-radius: 3px;
        border-bottom-right-radius: 3px;
        border-top-right-radius: 3px; } }
  @media only screen and (max-width: 40em) {
    .button-group.radius.stack-for-small > * {
      display: block;
      margin: 0; }
      .button-group.radius.stack-for-small > * > button, .button-group.radius.stack-for-small > * .button {
        border-left: 1px solid;
        border-color: rgba(255, 255, 255, 0.5); }
      .button-group.radius.stack-for-small > *:first-child button, .button-group.radius.stack-for-small > *:first-child .button {
        border-left: 0; }
      .button-group.radius.stack-for-small > * > button, .button-group.radius.stack-for-small > * .button {
        border-color: rgba(255, 255, 255, 0.5);
        border-left-width: 0;
        border-top: 1px solid;
        display: block;
        margin: 0; }
      .button-group.radius.stack-for-small > * > button {
        width: 100%; }
      .button-group.radius.stack-for-small > *:first-child button, .button-group.radius.stack-for-small > *:first-child .button {
        border-top: 0; }
      .button-group.radius.stack-for-small > *,
      .button-group.radius.stack-for-small > * > a,
      .button-group.radius.stack-for-small > * > button,
      .button-group.radius.stack-for-small > * > .button {
        border-radius: 0; }
      .button-group.radius.stack-for-small > *:first-child, .button-group.radius.stack-for-small > *:first-child > a, .button-group.radius.stack-for-small > *:first-child > button, .button-group.radius.stack-for-small > *:first-child > .button {
        -webkit-top-left-radius: 3px;
        -webkit-top-right-radius: 3px;
        border-top-left-radius: 3px;
        border-top-right-radius: 3px; }
      .button-group.radius.stack-for-small > *:last-child, .button-group.radius.stack-for-small > *:last-child > a, .button-group.radius.stack-for-small > *:last-child > button, .button-group.radius.stack-for-small > *:last-child > .button {
        -webkit-bottom-left-radius: 3px;
        -webkit-bottom-right-radius: 3px;
        border-bottom-left-radius: 3px;
        border-bottom-right-radius: 3px; } }
  .button-group.round > * {
    display: inline-block;
    margin: 0 -2px; }
    .button-group.round > * > button, .button-group.round > * .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.round > *:first-child button, .button-group.round > *:first-child .button {
      border-left: 0; }
    .button-group.round > *,
    .button-group.round > * > a,
    .button-group.round > * > button,
    .button-group.round > * > .button {
      border-radius: 0; }
    .button-group.round > *:first-child, .button-group.round > *:first-child > a, .button-group.round > *:first-child > button, .button-group.round > *:first-child > .button {
      -webkit-border-bottom-left-radius: 1000px;
      -webkit-border-top-left-radius: 1000px;
      border-bottom-left-radius: 1000px;
      border-top-left-radius: 1000px; }
    .button-group.round > *:last-child, .button-group.round > *:last-child > a, .button-group.round > *:last-child > button, .button-group.round > *:last-child > .button {
      -webkit-border-bottom-right-radius: 1000px;
      -webkit-border-top-right-radius: 1000px;
      border-bottom-right-radius: 1000px;
      border-top-right-radius: 1000px; }
  .button-group.round.stack > * {
    display: block;
    margin: 0; }
    .button-group.round.stack > * > button, .button-group.round.stack > * .button {
      border-left: 1px solid;
      border-color: rgba(255, 255, 255, 0.5); }
    .button-group.round.stack > *:first-child button, .button-group.round.stack > *:first-child .button {
      border-left: 0; }
    .button-group.round.stack > * > button, .button-group.round.stack > * .button {
      border-color: rgba(255, 255, 255, 0.5);
      border-left-width: 0;
      border-top: 1px solid;
      display: block;
      margin: 0; }
    .button-group.round.stack > * > button {
      width: 100%; }
    .button-group.round.stack > *:first-child button, .button-group.round.stack > *:first-child .button {
      border-top: 0; }
    .button-group.round.stack > *,
    .button-group.round.stack > * > a,
    .button-group.round.stack > * > button,
    .button-group.round.stack > * > .button {
      border-radius: 0; }
    .button-group.round.stack > *:first-child, .button-group.round.stack > *:first-child > a, .button-group.round.stack > *:first-child > button, .button-group.round.stack > *:first-child > .button {
      -webkit-top-left-radius: 1rem;
      -webkit-top-right-radius: 1rem;
      border-top-left-radius: 1rem;
      border-top-right-radius: 1rem; }
    .button-group.round.stack > *:last-child, .button-group.round.stack > *:last-child > a, .button-group.round.stack > *:last-child > button, .button-group.round.stack > *:last-child > .button {
      -webkit-bottom-left-radius: 1rem;
      -webkit-bottom-right-radius: 1rem;
      border-bottom-left-radius: 1rem;
      border-bottom-right-radius: 1rem; }
  @media only screen and (min-width: 40.0625em) {
    .button-group.round.stack-for-small > * {
      display: inline-block;
      margin: 0 -2px; }
      .button-group.round.stack-for-small > * > button, .button-group.round.stack-for-small > * .button {
        border-left: 1px solid;
        border-color: rgba(255, 255, 255, 0.5); }
      .button-group.round.stack-for-small > *:first-child button, .button-group.round.stack-for-small > *:first-child .button {
        border-left: 0; }
      .button-group.round.stack-for-small > *,
      .button-group.round.stack-for-small > * > a,
      .button-group.round.stack-for-small > * > button,
      .button-group.round.stack-for-small > * > .button {
        border-radius: 0; }
      .button-group.round.stack-for-small > *:first-child, .button-group.round.stack-for-small > *:first-child > a, .button-group.round.stack-for-small > *:first-child > button, .button-group.round.stack-for-small > *:first-child > .button {
        -webkit-border-bottom-left-radius: 1000px;
        -webkit-border-top-left-radius: 1000px;
        border-bottom-left-radius: 1000px;
        border-top-left-radius: 1000px; }
      .button-group.round.stack-for-small > *:last-child, .button-group.round.stack-for-small > *:last-child > a, .button-group.round.stack-for-small > *:last-child > button, .button-group.round.stack-for-small > *:last-child > .button {
        -webkit-border-bottom-right-radius: 1000px;
        -webkit-border-top-right-radius: 1000px;
        border-bottom-right-radius: 1000px;
        border-top-right-radius: 1000px; } }
  @media only screen and (max-width: 40em) {
    .button-group.round.stack-for-small > * {
      display: block;
      margin: 0; }
      .button-group.round.stack-for-small > * > button, .button-group.round.stack-for-small > * .button {
        border-left: 1px solid;
        border-color: rgba(255, 255, 255, 0.5); }
      .button-group.round.stack-for-small > *:first-child button, .button-group.round.stack-for-small > *:first-child .button {
        border-left: 0; }
      .button-group.round.stack-for-small > * > button, .button-group.round.stack-for-small > * .button {
        border-color: rgba(255, 255, 255, 0.5);
        border-left-width: 0;
        border-top: 1px solid;
        display: block;
        margin: 0; }
      .button-group.round.stack-for-small > * > button {
        width: 100%; }
      .button-group.round.stack-for-small > *:first-child button, .button-group.round.stack-for-small > *:first-child .button {
        border-top: 0; }
      .button-group.round.stack-for-small > *,
      .button-group.round.stack-for-small > * > a,
      .button-group.round.stack-for-small > * > button,
      .button-group.round.stack-for-small > * > .button {
        border-radius: 0; }
      .button-group.round.stack-for-small > *:first-child, .button-group.round.stack-for-small > *:first-child > a, .button-group.round.stack-for-small > *:first-child > button, .button-group.round.stack-for-small > *:first-child > .button {
        -webkit-top-left-radius: 1rem;
        -webkit-top-right-radius: 1rem;
        border-top-left-radius: 1rem;
        border-top-right-radius: 1rem; }
      .button-group.round.stack-for-small > *:last-child, .button-group.round.stack-for-small > *:last-child > a, .button-group.round.stack-for-small > *:last-child > button, .button-group.round.stack-for-small > *:last-child > .button {
        -webkit-bottom-left-radius: 1rem;
        -webkit-bottom-right-radius: 1rem;
        border-bottom-left-radius: 1rem;
        border-bottom-right-radius: 1rem; } }

.button-bar:before, .button-bar:after {
  content: " ";
  display: table; }
.button-bar:after {
  clear: both; }
.button-bar .button-group {
  float: left;
  margin-right: 0.625rem; }
  .button-bar .button-group div {
    overflow: hidden; }

<div class="button-group">
  <a class="button first">First</a>
  <a class="button">Middle</a>
  <a class="button last">Last</a>
</div>

@mixin radius-left($radius) {
    border-radius-topleft:              $radius;
    border-radius-bottomleft:           $radius;
    -moz-border-radius-topleft:         $radius;
    -moz-border-radius-bottomleft:      $radius;
    -webkit-border-top-left-radius:     $radius;
    -webkit-border-bottom-left-radius:  $radius;
    -khtml-border-top-left-radius:      $radius;
    -khtml-border-bottom-left-radius:   $radius;
}
@mixin radius-right($radius) {
    border-radius-topright:             $radius;
    border-radius-bottomright:          $radius;
    -moz-border-radius-topright:        $radius;
    -moz-border-radius-bottomright:     $radius;
    -webkit-border-top-right-radius:    $radius;
    -webkit-border-bottom-right-radius: $radius;
    -khtml-border-top-right-radius:     $radius;
    -khtml-border-bottom-right-radius:  $radius;
}
..
..
.button.first { @include radius-left(10px); }
.button.last  { @include radius-right(10px); }