CSS column-count and Chrome bug: how to avoid overflow content being cropped

问题

When column-count is used, it seems to crop any overflow content.

#columns {
  -webkit-column-count: 1;
  -webkit-column-gap: 10px;
  /*-webkit-column-fill: auto;*/
  -moz-column-count: 1;
  -moz-column-gap: 10px;
  /*-moz-column-fill: auto;*/
  column-count: 1;
  column-gap: 10px;
  /*column-fill: auto;*/
  border: 1px solid red;
  overflow: visible;
}
.pin {
  width: 100%;
  display: inline-block;
  padding: 10px;
  margin-bottom: 5px;
}

<div id="columns">

  <div class="pin">

    <a href="#">
      <span class="onsale">Sale!</span>
      <img src="#.jpg" />
    </a>
    <h3>Product 1</h3>
    </a>
  </div>

</div>

Result:

Any ideas how I can fix this?

EDIT 1:

It seems it is a bug in Chrome.

it is fine on Firefox though:

EDIT 2:

span.onsale {
    min-height: 3.236em;
    min-width: 3.236em;
    padding: .202em;
    font-size: 1em;
    font-weight: 700;
    position: absolute;
    text-align: center;
    line-height: 3.236;
    top: -.5em;
    left: -.5em;
    margin: 0;
    border-radius: 100%;
    background-color: $highlight;
    color: $highlightext;
    font-size: .857em;
    -webkit-font-smoothing: antialiased;
}

回答1:

~~I'm not sure how you are styling your .onsale so I styled on my own way.~~

If you use position:relative in .pin and then position:absolute you can achieve what you want.

UPDATE: The issue is the webkit-column-count:1 in Chrome and since having that with 1 or nothing is the same, just remove it and use another technique that will allow you to have the .onsale out of flow by using position:absolute

#columns {
 
  border: 1px solid red;
  
}
.pin {
  width: 100%;
  display: inline-block;
  padding: 10px;
  margin-bottom: 5px;
  position: relative
}
.onsale {
   min-height: 3.236em;
    min-width: 3.236em;
    padding: .202em;
    font-size: 1em;
    font-weight: 700;
    position: absolute;
    text-align: center;
    line-height: 3.236;
    top: -.5em;
    left: -.5em;
    margin: 0;
    border-radius: 100%;
    background-color: lightgreen;
    color: white;
    font-size: .857em;
    -webkit-font-smoothing: antialiased;
}

<div id="columns">
  <div class="pin">
    <a href="#">
      <span class="onsale">Sale!</span>
      <img src="//placehold.it/300x300" />
    </a>
    <h3>Product 1</h3>
  </div>
  <div class="pin">
    <a href="#">
      <span class="onsale">Sale!</span>
      <img src="//placehold.it/300x300" />
    </a>
    <h3>Product 2</h3>
  </div>
</div>

回答2:

Add transform: translateZ(0); to your .pin to enable hardware acceleration as a workaround.

回答3:

I have a fix for this too.

This example shows the use of

transform: translateZ(0);

which fixes the cropping issue. It also shows a clever way to show the content Above the other columns blocks using z-index on hover:

https://codepen.io/HaloDesign/pen/zdRoYZ

回答4:

Just use padding inside #columns class

来源：https://stackoverflow.com/questions/36009713/css-column-count-and-chrome-bug-how-to-avoid-overflow-content-being-cropped

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css

column-count