overflow

by reesewill

HTML

<div class="wrap">

  <p class="text"><span class="content">william william william william william william william william william william </span></p><span class="more">read more</span>
</div>

CSS

.wrap {
  padding: 20px 20px 20px 20px;
  border: 1px solid black;
}
.inner {
  background-color: #ddf;
    position: relative;
}
.more {
  display: inline;
  background-color: red;
  margin-left: 10px;
  vertical-align: baseline;
}
.content {
  background: #ffd;
  display: inline-block;
  vertical-align: baseline;
}
.text {
  display: inline-block;
  vertical-align: baseline;
  height: 1em;
  overflow: hidden;
  white-space: nowrap;
  padding: 0;
  margin: 0;
  max-width: calc(100% - 80px);
}