Question

我试图在单击按钮时显示带有文字和图像的条（好像是通知），该条会一直增长直到达到最大大小并显示内容为止，但是当动画发生时正在重新定位，我希望它停在原位，只有条形物才能移动。

<!DOCTYPE html>
<html>
  <head>
    <style> 
      .notification {
          width: 0px;
          height: 100px;
          background: whitesmoke;
          display: flex;

          overflow: hidden;

          -webkit-transition: width 2s;
          transition: width 2s;
      }

      .show {
          width: 450px;
      }
 
      .avatar img {
        width: 70px;
        height: 70px;
        margin: 20px;
      }

      .text {
        margin: 5px 20px;
      }

    </style>
  </head>
  <body>

    <div class="notification">
      <div class="avatar">
        <img src="https://cdn.icon-icons.com/icons2/1147/PNG/512/1486486303-alert-bell-notification-education-christmas-bell-church-bell-ring_81235.png">
      </div>
      <div class="text">
        <p><strong>Call Notification</strong></p>
        <p>Receive a notification by a determinate person - <strong>PERSON NAME</strong></p>
      </div>
    </div>

    <br><br>

    <button>Notify</button>

    <script type="text/javascript">
      let notification = document.querySelector('.notification');

      document.querySelector('button').addEventListener('click', function(){
        notification.classList.add('show');
      });
    </script>

  </body>
</html>

我尝试添加空白：nowrap属性。

.text {
        white-space: nowrap;
        margin: 5px 20px;
      }

它甚至可以按我想要的方式工作，但是如果文本太大（大于栏的宽度），则会被overflow：hidden属性隐藏。

<!DOCTYPE html>
<html>
  <head>
    <style> 
      .notification {
          width: 0px;
          height: 100px;
          background: whitesmoke;
          display: flex;

          overflow: hidden;

          -webkit-transition: width 2s;
          transition: width 2s;
      }

      .show {
          width: 450px;
      }
 
      .avatar img {
        width: 70px;
        height: 70px;
        margin: 20px;
      }

      .text {
        white-space: nowrap;
        margin: 5px 20px;
      }

    </style>
  </head>
  <body>

    <div class="notification">
      <div class="avatar">
        <img src="https://cdn.icon-icons.com/icons2/1147/PNG/512/1486486303-alert-bell-notification-education-christmas-bell-church-bell-ring_81235.png">
      </div>
      <div class="text">
        <p><strong>Call Notification</strong></p>
        <p>Receive a notification by a determinate person - <strong>PERSON NAME</strong></p>
      </div>
    </div>

    <br><br>

    <button>Notify</button>

    <script type="text/javascript">
      let notification = document.querySelector('.notification');

      document.querySelector('button').addEventListener('click', function(){
        notification.classList.add('show');
      });
    </script>

  </body>
</html>

有人知道如何帮助我解决这个问题吗？

Answer 1

您可以将文本设置为固定宽度并禁用其收缩效果，以保持该固定宽度，从而使文本不会移动，只需显示即可：

ind

let notification = document.querySelector('.notification');

document.querySelector('button').addEventListener('click', function() {
  notification.classList.add('show');
});

.notification {
  width: 0px;
  height: 100px;
  background: whitesmoke;
  display: flex;
  overflow: hidden;
  transition: width 2s;
}

.show {
  width: 450px;
}

.avatar img {
  width: 70px;
  height: 70px;
  margin: 20px;
}

.text {
  margin: 5px 20px;
  width:calc(450px - 70px - 2*20px); /*total width - image width - margin of image*/
  flex-shrink:0; /* avoid the width of the element to be reduced by the shrink effect*/
}

使用-webkit-transition时的文本定位

1 个答案: