CSS ::-webkit-scrollbar禁用双键

Question

[通过::-webkit-scrollbar选择器在CSS中使用自定义样式的滚动条时，然后取决于目标元素的display属性，要么获得single-button要么double-button。

请参见下面的示例，该示例显示了具有display: flex和display: block的元素的不同行为。

body
{
  background: #111;
  color: white;
}

.wrapper
{
  height: 150px; 
  overflow-y: scroll; 
  background: #333; 
  display: flex; 
  padding: 10px;
}

.wrapper > div
{
  height: 300px;
}

.custom-scrollbar::-webkit-scrollbar 
{ 
  width: 16px; 
  height: 16px;
}

.custom-scrollbar::-webkit-scrollbar-track-piece 
{ 
  background-color: #444;
}

.custom-scrollbar::-webkit-scrollbar-thumb 
{  
  background: #555;
}

.custom-scrollbar::-webkit-scrollbar-button
{
  background: #666;
}

.custom-scrollbar::-webkit-scrollbar-button:vertical:decrement,
.custom-scrollbar::-webkit-scrollbar-button:vertical:increment,
.custom-scrollbar::-webkit-scrollbar-button:horizontal:decrement,
.custom-scrollbar::-webkit-scrollbar-button:horizontal:increment
{
  border: 1px solid #000;
}


.custom-scrollbar::-webkit-scrollbar-button:single-button:vertical:decrement,
.custom-scrollbar::-webkit-scrollbar-button:single-button:vertical:increment,
.custom-scrollbar::-webkit-scrollbar-button:single-button:horizontal:decrement,
.custom-scrollbar::-webkit-scrollbar-button:single-button:horizontal:increment
{
  background: #AAA
}

Device: Win10
<br />
Browser: Chrome
<br />
Goal: Custom styled scrollbar without the "double button", regardless of the display property.
<br />
<strong>Question</strong>: How to disable the "double button" completely?
<br />
<br />


<div style="display: flex">
  
  <div style="width: 30%">
    <div class="custom-scrollbar wrapper">
      <div>
        display: flex
        <br />
        scrollbar: custom
        <br />
        double-button: visible (= BAD)
      </div>
    </div>
  </div>
  
  <div style="width: 5%">
  </div>
  <div style="width: 30%">
    <div class="custom-scrollbar wrapper" style="display: block">
      <div>
        display: block
        <br />
        scrollbar: custom
        <br />
        double-button: not visible (= GOOD)
      </div>
    </div>
  </div>
</div>

<br />
<br />

<div style="display: flex">
  
  <div style="width: 30%">
    <div class="wrapper">
      <div>
        display: flex
        <br />
        scrollbar: default
        <br />
        double-button: not visible (= GOOD)
      </div>
    </div>
  </div>
  
  <div style="width: 5%">
  </div>
  <div style="width: 30%">
    <div class="wrapper" style="display: block">
      <div>
        display: block
        <br />
        scrollbar: default
        <br />
        double-button: not visible (= GOOD)
      </div>
    </div>
  </div>
</div>

CodePen链接：https://codepen.io/Acmion/pen/VweKxZa

如何完全禁用double-button？

Answer 1

要禁用double-button，请使用：

::-webkit-scrollbar-button:vertical:start:increment,
::-webkit-scrollbar-button:vertical:end:decrement, 
::-webkit-scrollbar-button:horizontal:end:increment, 
::-webkit-scrollbar-button:horizontal:end:decrement 
{
    display: none;
}