zepto

<div style="border:1px solid black;100px;height:130px;overflow:auto">
    The longest word in the english dictionary is: pneumonoultramicroscopicsilicovolcanoconiosis.
</div>
<button class="btn1">把滚动条的水平位置设置为 100px</button>

$("button").click(function(){
        $("div").scrollLeft(100);
    });