css溢出图片隐藏怎么实现

.nameBox {
        // 文字不允许换行（单行文本）
        white-space: nowrap;
        // 溢出部分隐藏
        overflow: hidden;
        // 文本溢出后，使用 ... 代替
        text-overflow: ellipsis;
        margin-right: 3px;
      }

 <div class="img-box">
    <img src="https://tse1-mm.cn.bing.net/th/id/R-C.ff711761e8db8b85f993ebed08172a0e?rik=MVGhEvoXVGZZ8A&riu=Http%3a%2f%2fdl.ppt123.net%2fpptbj%2f201206%2f2012060908533798.jpg&ehk=knHJW8AKQ42Ak6HdIFUL9%2fQLuT%2b8yG4SmmDGN4rREsE%3D&risl=&pid=ImgRaw&r=0">
  </div>

<style>
    .img-box{
      width: 400px; 
      overflow: hidden;
      background-color:teal;
    }
    img{
     display: block;
      width:100%;
      animation: a1 4s linear infinite alternate;
    }
    @keyframes a1{
      100%{
        transfORM: scale(1.5);
      }
    }
  </style>