How to word-break text in a flex display when the text is long?

just put word-break:break-all property to its parent div. You can see it live by clicking this JSFiddle link


.parent {
   display: flex;
   width: 15rem;
   padding: 10px;
   background: yellowgreen;
   /* overflow: hidden       <-- not necessary at this point */
   /* flex-direction: row    <-- default value; can be omitted */
}
.flex-item {
   /* width: 10em            <-- not necessary at this point */
   /* flex: 1 1 50%          <-- not necessary at this point */
   padding: 10px;
   background: yellow;
   display: flex;            /* new */
   min-width: 0;             /* see note #1 */

}
.block1 {
   width: 10em;
   overflow: hidden;         /* see note #2 */
   text-overflow: ellipsis;  /* see note #2 */
   white-space: nowrap;      /* see note #2 */
   background: red;
}
.block2 {
  background: orange;
}

/* .nos { flex-shrink: 0 !important; } */
<div class="parent">
  <div class="flex-item">
    <div class="block1">longlonglonglonglonglonglonglonglonglonglonglonglonglong</div>
  </div>
  <div class="flex-item">
    <div class="block2">Display</div>
  </div>
</div>
<br/>
<div class="parent">
  <div class="flex-item">
    <div class="block1">longlonglonglonglong...</div>
  </div>
  <div class="flex-item">
    <div class="block2">Display</div>
  </div>
</div>

revised fiddle

Notes:

  1. Why doesn't flex item shrink past content size?
  2. Applying an ellipsis to multiline text

Something like this.

*{
  box-sizing:border-box;
}
.parent {
    display: flex;
    flex-direction: row;
    width: 16rem;
    background: yellowgreen;
    padding: 10px;
    overflow: hidden;
    position: relative;
}
.flex-item {
    width: 100%;
    padding: 10px;
    background: yellow;
    flex: 1 1;
}
.block1 {
  background: red;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right:70px;
}
.block2 {
  background: orange;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nos {
    flex-shrink: 0 !important;
    position: absolute;
    right: 10px;
    max-width: 70px;
}
<div class="parent">
  <div class="flex-item">
    <div class="block1">
      longlonglonglonglonglonglonglonglonglonglonglonglonglong
    </div>
  </div>
  <div class="flex-item nos">
    <div class="block2">
      Display
    </div>
  </div>
</div>

Tags:

Html

Css

Flexbox