可変に対応した文字省略

    <div class="flexBox">
        <div>radio</div>
        <div class="flexBox grow">
            <div class="flex33 flexBox">
                <div class="label">sweet</div>
                <div class="ellipsis">aaaaaaaaaa</div>
            </div>
            <div class="flex33 flexBox">
                <div class="label">dark</div>
                <div class="ellipsis">aaaaaaaaaa</div>
            </div>
            <div class="flex33 flexBox">
                <div class="label">dark</div>
                <div class="ellipsis">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</div>
            </div>
        </div>
    </div>
    
    <style>
    .flexBox {
  display: flex;
  width: 100%;
}

.grow {
  flex-grow: 1;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
}

.flex33 {
  flex: 0 0 33.333%;
  min-width: 0;
  display: flex;
  align-items: flex-start; /* 変更 */
  margin-bottom: 8px;
  overflow: hidden;
}

.label {
  margin-right: 24px;
  border: 1px solid #333;
  flex-shrink: 0;
}

.ellipsis-container {
  flex-grow: 1;
  min-width: 0;
  max-height: 2.3em; /* line-heightの3倍 */
  overflow: hidden;
}

.ellipsis {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2; /* 3行で省略 */
  line-height: 1.2em; /* line-heightの値を指定 */
  white-space: normal;
  word-break: break-word; /* 単語単位で改行 */
}
    </style>