html - 将图片库放在背景图片上

Question

在我的主页上，我有一张背景图片，我想在该背景图片上叠加一个位于中心的图片库(4 张图片)。我附上了 screen shot给人们一个想法。

谢谢

Answer 1

像这样:

document.getElementById('g1').onclick = function() {
  document.getElementById('bigImage').innerHTML = '<img src="http://www.kurzweilai.net/images/Naam-Limits-of-Earth-Part1-001-earth-600x600.jpg" style="height: 600px; width: 600px;">';
  document.getElementById('g1').innerHTML = '<img src="http://www.spitzer.caltech.edu/uploaded_files/images/0009/6502/ssc2013-07b_Ti.jpg" style="height: 60px; width: 60px;">';
};

#bigImage{
  width: 600px;
  height: 600px;
}
#gallery {
  width: 60px;
  height: 60px;
  z-index: 99999;
}

<div>
  <div id = "bigImage">
    <img src="http://www.spitzer.caltech.edu/uploaded_files/images/0009/6502/ssc2013-07b_Ti.jpg" style="height: 600px; width: 600px;">
  </div>
  <div id = "gallery">
    <div id = "g1">
      <img src="http://www.kurzweilai.net/images/Naam-Limits-of-Earth-Part1-001-earth-600x600.jpg" style="height: 60px; width: 60px;">
    </div>
  </div>

</div>