Bài 13: Thuộc tính z-index trong CSS
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<!DOCTYPE html> <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no"> <meta charset="utf-8"> <title>Control z-index</title> <style> #map1{ width: 200px; height: 100px; position:absolute; top: 50px; left: 50px; background: blue; z-index: 2; } #map2{ width: 200px; height: 100px; position:absolute; top: 80px; left: 70px; background: yellow; z-index:1 } </style> </head> <body> <div id="map1"> </div> <div id="map2"> </div> </body> </html>
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