我有以下代碼，其中容器中有（可變）數(shù)量的按鈕，調整屏幕大小時按鈕的位置正確調整為容器的寬度，但我想要實現(xiàn)的是在某個斷點處，按鈕應該停止重新定位自己，而是讓容器滾動overflow-y，并將按鈕保持在其位置。.container {  max-width: 800px;  background-color: beige;}.btn {  width: 80px;}.btn span{  white-space: nowrap;  overflow: hidden;  text-overflow: ellipsis;  display: block;}<div class="container">  <button class="btn"><span>test</span></button>  <button class="btn"><span>test123</span></button>  <button class="btn"><span>test450354053</span></button>  <button class="btn"><span>test23R02020202</span></button>  <button class="btn"><span>test33030494</span></button>  <button class="btn"><span>test403930390</span></button>  <button class="btn"><span>test</span></button>  <button class="btn"><span>test23423049</span></button>  <button class="btn"><span>testé</span></button>  <button class="btn"><span>test2340</span></button>  <button class="btn"><span>test234234</span></button>  <button class="btn"><span>test2342</span></button>  <button class="btn"><span>test2342020</span></button>  <button class="btn"><span>test2202349</span></button>  <button class="btn"><span>testé</span></button>  <button class="btn"><span>test234029</span></button>  <button class="btn"><span>test20203030</span></button>  <button class="btn"><span>test340</span></button>  <button class="btn"><span>test234240</span></button>  <button class="btn"><span>test2342340</span></button>  <button class="btn"><span>test23420420</span></button></div>