標籤：作用 lang charset 映像 pos osi ima oct height
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>40-CSS精靈圖</title> <style> .box{ width: 86px; height: 28px; background-image: url(images/weibo.png); background-position: -425px -200px; } </style></head><body><!--1.什麼是CSS精靈圖CSS精靈圖是一種映像合成技術2.CSS精靈圖作用可以減少請求的次數, 以及可以降低伺服器處理壓力3.如何使用CSS精靈圖CSS的精靈圖需要配合背景圖片和背景定位來使用--><div class="box"></div></body></html>
H5 40-CSS精靈圖
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