Editing a sticky input element in Chrome causes the page to scroll to the top

问题

I was trying to use the css position: sticky in one of my personal project when I noticed that having editable elements like input fields or text-areas inside, trigger the page to scroll to the top.

I would really like to remove this behaviour if possible.

.container {
  height: 5000px;
}

.heading{
  background: #ccc;
  height: 50px;
  line-height: 50px;
  margin-top: 10px;
  font-size: 30px;
  padding-left: 10px;
  position: -webkit-sticky;
  position: sticky;
  top: 0px;
}

<h1>Lorem Ipsum</h1>

<div class="container">
  <div class="heading">
    <input placeholder="Edit this while scrolling...">
  </div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>  
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
</div>

回答1:

I have managed to make it work, but it's probably not the best solution.

Add add either overflow: auto or overflow: hidden to the class with position: sticky.
Remove the placeholder from <input>.

I'm not sure why adding overflow or removing the placeholder makes it work, maybe someone can help explain this.

.container {
  height: 5000px;
}

.heading{
  background: #ccc;
  height: 50px;
  line-height: 50px;
  margin-top: 10px;
  font-size: 30px;
  padding-left: 10px;
  position: -webkit-sticky;
  position: sticky;
  top: 0px;
  overflow: auto;
}

<h1>Lorem Ipsum</h1>

<div class="container">
  <div class="heading">
    <input>
  </div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>  
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
</div>

回答2:

You'll have to do some validation of the key - probably best with a regex check to confirm acceptable characters, but you can call a javascript function from the keypress, update the value of the input, and return false:

var e = document.getElementById('input');
e.onkeypress = myFunction;

function myFunction(t) {
  document.getElementById('input').value += t.key;
  return false;
}

.container {
  height: 1000px;
}

.heading{
  background: #ccc;
  height: 50px;
  line-height: 50px;
  margin-top: 10px;
  font-size: 30px;
  padding-left: 10px;
  position: -webkit-sticky;
  position: sticky;
  top: 0px;
}

<h1>Lorem Ipsum</h1>

<div class="container">
  <div class="heading">
    <input id="input" placeholder="Edit this while scrolling...">
  </div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>  
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
  <div>Lorem Ipsum</div>
</div>

来源：https://stackoverflow.com/questions/44438958/editing-a-sticky-input-element-in-chrome-causes-the-page-to-scroll-to-the-top

标签

html

css

google-chrome

css-position

sticky