CSS ellipsis 与 padding 结合时的问题详解

.truncate-text-4 {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

<style>
  .my-div {
    width: 300px;
    margin: 10px auto;
    background: #ddd;
  }
</style>
<div class="my-div truncate-text-4">
  How Not To Shuffle - The Knuth Fisher-Yates Algorithm. Written by Mike James.
  Thursday, 16 February 2017. Sometimes simple algorithms are just wrong. In
  this case shuffling an .... In other words as the array is scanned the element
  under
</div>

  .my-div {
    width: 300px;
    margin: 10px auto;
    background: #ddd;
+    padding: 30px;
  }
现在的效果

.my-div {
  width: 300px;
  margin: 10px auto;
  background: #ddd;
  padding: 30px;
+  line-height: 75px;
}

.my-div {
  width: 300px;
  margin: 10px auto;
  background: #ddd;
-  padding: 30px;
+  border: 30px solid transparent;
}

<div className="my-div">
  <div className="truncate-text-4">
    How Not To Shuffle - The Knuth Fisher-Yates Algorithm. Written by Mike
    James. Thursday, 16 February 2017. Sometimes simple algorithms are just
    wrong. In this case shuffling an .... In other words as the array is scanned
    the element under
  </div>
</div>