我如何通过CSS(层叠样式表)为一个div而不是整个页面自定义滚动条?


当前回答

对于使用sass的人来说,这里是一个具有基本功能(拇指,轨道颜色和宽度)的mixin。我没有广泛地测试它,所以请随意指出任何错误。

@mixin element-scrollbar($thumb-color, $background-color: mix($thumb-color, white,  50%), $width: 1rem) {
  // For Webkit
  &::-webkit-scrollbar-thumb {
    background: $thumb-color;
  }

  &::-webkit-scrollbar-track {
    background: $background-color;
  }

  &::-webkit-scrollbar {
    width: $width;
    height: $width;
  }

  // For Internet Explorer
  & {
    scrollbar-face-color: $thumb-color;
    scrollbar-arrow-color: $thumb-color;
    scrollbar-track-color: $background-color;
  }

  // For Firefox future compatibility
  // This is W3C draft and does not work yet. Use html-firefox-scrollbar mixin instead.
  & {
    scrollbar-color: $thumb-color $background-color;
    scrollbar-width: $width;
  }
}

// For Firefox
@mixin html-firefox-scrollbar($thumb-color, $background-color: mix($thumb-color, white,  50%), $firefox-width: this) {
  // This must be used on html/:root element to take effect
  & {
    scrollbar-color: $thumb-color $background-color;
    scrollbar-width: $firefox-width;
  }
}

其他回答

试试吧

来源:https://nicescroll.areaaperta.com/

简单的实现

<script type="text/javascript">
 $(document).ready(

  function() { 

    $("html").niceScroll();

  }

);
</script>

它是一个jQuery插件滚动条,所以你的滚动条是可控的,在不同的操作系统上看起来是一样的。

下面是一个适用于Chrome和Safari的webkit示例:

CSS:

::-webkit-scrollbar 
{
    width: 40px;
    background-color:#4F4F4F;
}

::-webkit-scrollbar-button:vertical:increment 
{
    height:40px;
    background-image: url(/Images/Scrollbar/decrement.png);
    background-size:39px 30px;
    background-repeat:no-repeat;
}

::-webkit-scrollbar-button:vertical:decrement 
{
    height:40px;
    background-image: url(/Images/Scrollbar/increment.png);    
    background-size:39px 30px;
    background-repeat:no-repeat;
}

输出:

我尝试了很多JS和CSS滚动,我发现这很容易使用,并在IE、Safari和FF上进行了测试,效果很好

正如@ theblufox所言

下面是它的工作原理

将下面的脚本添加到

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
<script type="text/javascript" src="jquery.ui.touch-punch.min.js"></script>

<script type="text/javascript" src="facescroll.js"></script>

<script type="text/javascript">
    jQuery(function(){ // on page DOM load
        $('#demo1').alternateScroll();
        $('#demo2').alternateScroll({ 'vertical-bar-class': 'styled-v-bar', 'hide-bars': false });  
    })
</script>

在这段你需要滚动的地方

<div id="demo1" style="width:300px; height:250px; padding:8px; resize:both; overflow:scroll">
**Your Paragraph Comes Here**
</div>

更多细节请访问插件页面

FaceScroll自定义滚动条

希望能有所帮助

.className::-webkit-scrollbar {
  width: 10px;
  background-color: rgba(0,0,0,0);
}

.className::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.5);
  border-radius: 5px;
}

给了我一个漂亮的手机。

或者像这样使用:

var MiniScroll=function(a,b){function e(){c.scrollUpdate()}function f(){var a=new Date,b=Math.abs(a-c.animation.frame),d=c.countScrollHeight();c.animation.frame=a,c.render(b),d.height!=c.controls.height&&(e(),c.controls.height=d.height),requestAnimationFrame(f)}function g(){c.scrollUpdate()}function h(a){var b=c.target.scrollTop,d=Math.abs(a.wheelDeltaY/(10-c.speed));c.target.scrollTop=a.wheelDeltaY>0?b-d:b+d,c.scrollUpdate()}function i(a){if(a.target.classList.contains("scroll"))return a.preventDefault(),!1;var b=c.countScrollHeight();c.target.scrollTop=a.offsetY*b.mul-parseInt(b.height)/2,c.scrollUpdate()}b=b||{};var c=this,d={speed:"speed"in b?b.speed:7};this.target=document.querySelector(a),this.animation={frame:new Date,stack:[]},this.identity="scroll"+parseInt(1e5*Math.random()),this.controls={place:null,scroll:null,height:0},this.speed=d.speed,this.target.style.overflow="hidden",this.draw(),requestAnimationFrame(f),this.target.onscroll=g,this.target.addEventListener("wheel",h),this.controls.place.onclick=i};MiniScroll.prototype.scrollUpdate=function(){this.controls.place.style.height=this.target.offsetHeight+"px";var a=this.countScrollHeight();this.controls.scroll.style.height=a.height,this.controls.scroll.style.top=a.top},MiniScroll.prototype.countScrollHeight=function(){for(var a=this.target.childNodes,b=parseInt(this.target.offsetHeight),c=0,d=0;d<a.length;d++)a[d].id!=this.identity&&(c+=parseInt(a[d].offsetHeight)||0);var e=this.target.offsetHeight*parseFloat(1/(parseFloat(c)/this.target.offsetHeight)),f=this.controls.place.offsetHeight*(this.target.scrollTop/c)+"px";return{mul:c/this.target.offsetHeight,height:e>b?b+"px":e+"px",top:f}},MiniScroll.prototype.draw=function(){var a=document.createElement("div"),b=document.createElement("div");a.className="scroll-place",b.className="scroll",a.appendChild(b),a.id=this.identity,this.controls.place=a,this.controls.scroll=b,this.target.insertBefore(a,this.target.querySelector("*")),this.scrollUpdate()},MiniScroll.prototype.render=function(a){for(var b=0;b<this.animation.stack.length;b++){var c=this.animation.stack[b],d=parseInt(c.target);c.element.style[c.prop]=d+c.points}};

并初始化:

<body onload="new MiniScroll(this);"></body>

和自定义:

.scroll-place { // ... // }
.scroll { // ... // }