html css 控制div或者table等固定在指定位置_html/css_WEB-ITnose
.bottomTable{
background-color: rgb(249,249,249);
z-index:99999999; position:fixed; bottom:0; left:0; width:100%; _position:absolute; /* for IE6 */
/* _top: expression(document.body.scrollTop+document.body.clientHeight-this.offsetHeight); */
_top: expression(document.body.scrollTop+document.body.clientHeight-this.offsetHeight-6); /* for IE6 */
overflow:visible;
}
1、z-index:设置层处于最顶层。
2、position:fixed;设置定位。
3、_top: expression(document.body.scrollTop+document.body.clientHeight-this.offsetHeight-6);通过css绑定js控制层距顶端的高度,
此处是控制层处于底部,具体数值根据需求作相应的调整。
4、document.body.scrollTop:body,body标签滚动条滚动的距离,可更换为你其它标签对象(存在滚动条)。
5、document.body.clientHeight,body标签的高度,可更换为你其它标签对象。
6、-6,距具体情况作相应改动。

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