反转文字的颜色？ [英] Invert the color of text?

问题描述

我有一个横向滚动的页面，我有一个浮动菜单。我想让菜单中的文字反转它下面的颜色。有没有办法用HTML5，Javascript和/或jQuery来做到这一点？

I have a page that scrolls sideways and I have a floating menu. I want the text in the menu to invert the color that is under it. Is there a way to do that with HTML5, Javascript, and/or jQuery?

新增：在页面的不同部分？ CSS？

Added: How would you invert an image when it goes over different parts of the page? CSS?

这是我用于菜单的CSS的一部分

This is the bit of CSS I use for the menu

body{
  background:#000;
  font-family:Georgia;
  font-size: 34px;
  font-style: italic;
  letter-spacing:-1px;
  width:12000px;
  position:absolute;
  top:0px;
  left:0px;
  bottom:0px;
}
ul#banner{
  position: fixed;
  line-height: 45px;
  margin: 0 30px; padding: 0; 
}

推荐答案

step1。获取菜单的位置

step2。删除菜单并获取放置在位置上的元素

也许您可以使用document.elementFromPoint

step1. Get the position of your menu

step2. Remove your menu and get an element that is placed on the position

maybe you can use document.elementFromPoint

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