html里面的滚动条代码怎么写啊_IT百科

</div>

</div>

CSS样式：有点丑，凑活着看吧：

#bar {position:relative width:20px height:380px float:right background:#ccc border-radius:5px display:none}

#topBtn {width:20px height:20px position:absolute border-radius:5px}

#top {border:7px dashed transparent border-bottom:7px solid yellow position:absolute top:0px left:3px}

#downBtn {width:20px height:20px position:absolute border-radius:5px bottom:0px left:0px}

#down {border:7px dashed transparent border-top:7px solid yellow position:absolute bottom:0px left:3px}

#block-box {width:20px height:340px border-radius:5px position:absolute top:20px left:0px}

#block {width:20px border-radius:5px position:absolute background:red height:0px}

一般是：overflow:auto这个属性

同时简单介绍几种HTML滚动条代码：

1、向右滚动代码：

<tr>

</tr>

</table>

</td>

</tr>

</table>

</div>

var speed=30//速度数值越大速度越慢

//var colee_right2=document.getElementByIdx_x_x("colee_right2")

//var colee_right1=document.getElementByIdx_x_x("colee_right1")

//var colee_right=document.getElementByIdx_x_x("colee_right")

colee_right2.innerHTML=colee_right1.innerHTML

function Marquee4(){

if(colee_right.scrollLeft<=0)

colee_right.scrollLeft+=colee_right2.offsetWidth

else{

colee_right.scrollLeft--

}

var MyMar4=setInterval(Marquee4,speed)

colee_right.onmouseover=function() {clearInterval(MyMar4)}

colee_right.onmouseout=function() {MyMar4=setInterval(Marquee4,speed)}

</script>

2、向左滚动代码：

<td>

<tr>

</tr>

</table>

</td>

</tr>

</table>

</td>

</tr>

</table>

</div>

//使用div时，请保证colee_left2与colee_left1是在同一行上.

var speed=30//速度数值越大速度越慢

//var colee_left2=document.getElementByIdx_x("colee_left2")

//var colee_left1=document.getElementByIdx_x("colee_left1")

//var colee_left=document.getElementByIdx_x("colee_left")

colee_left2.innerHTML=colee_left1.innerHTML

function Marquee3(){

if(colee_left2.offsetWidth-colee_left.scrollLeft<=0)//offsetWidth 是对象的可见宽度

colee_left.scrollLeft-=colee_left1.offsetWidth//scrollWidth 是对象的实际内容的宽，不包边线宽度

else{

colee_left.scrollLeft++

}

var MyMar3=setInterval(Marquee3,speed)

colee_left.onmouseover=function() {clearInterval(MyMar3)}

colee_left.onmouseout=function() {MyMar3=setInterval(Marquee3,speed)}

</script>

3、向上滚动代码：

<tr>

</tr>

</table>

</div>

</div>

var speed=30

//var colee2=document.getElementByIdx_x("colee2")

//var colee1=document.getElementByIdx_x("colee1")

//var colee=document.getElementByIdx_x("colee")

colee2.innerHTML=colee1.innerHTML//克隆colee1为colee2

function Marquee1(){

//当滚动至colee1与colee2交界时

if(colee2.offsetTop-colee.scrollTop<=0){

colee.scrollTop-=colee1.offsetHeight//colee跳到最顶端

}else{

colee.scrollTop++

}

var MyMar1=setInterval(Marquee1,speed)//设置定时器

//鼠标移上时清除定时器达到滚动停止的目的

colee.onmouseover=function() {clearInterval(MyMar1)}

//鼠标移开时重设定时器

colee.onmouseout=function(){MyMar1=setInterval(Marquee1,speed)}

</script>

4、向下滚动代码：

<tr>

</tr>

</table>

</div>

</div>

var speed=30

var colee_bottom2=document.getElementByIdx_x("colee_bottom2")

var colee_bottom1=document.getElementByIdx_x("colee_bottom1")

var colee_bottom=document.getElementByIdx_x("colee_bottom")

colee_bottom2.innerHTML=colee_bottom1.innerHTML

colee_bottom.scrollTop=colee_bottom.scrollHeight

function Marquee2(){

if(colee_bottom1.offsetTop-colee_bottom.scrollTop>=0)

colee_bottom.scrollTop+=colee_bottom2.offsetHeight

else{

colee_bottom.scrollTop--

}

var MyMar2=setInterval(Marquee2,speed)

colee_bottom.onmouseover=function() {clearInterval(MyMar2)}

colee_bottom.onmouseout=function() {MyMar2=setInterval(Marquee2,speed)}

</script>

同时注意还有其他滚动代码的分享：

一、向左滚动：<marquee scrollAmount="2" direction="left" width="滚动区域宽度" height="滚动区域高度" onMouseOver="stop()" onMouseOut="start()">这里放滚动的内容</marquee>

二、向上滚动：<marquee scrollAmount="2" direction="up" width="滚动区域宽度" height="滚动区域高度" onMouseOver="stop()" onMouseOut="start()">这里放滚动的内容</marquee>。

欢迎分享，转载请注明来源：内存溢出

原文地址: http://outofmemory.cn/bake/11915848.html

html里面的滚动条代码怎么写啊

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