標籤：htm rgb body center url code color 開發 ack
<html><head><title>我的第一個 HTML 頁面</title><style> .banner { width: 100%; background: linear-gradient(to right bottom,rgba(0,0,0,0.9),rgba(0,0,0,0)),url(2.jpg) no-repeat center; height: 300px; color:white; } .center{ width:1200px; margin:0 auto; }</style></head><body> <div class="banner"> <div class="center"> <hgroup> <h2>開發人員文檔</h2> <h3>開發人員在建立公眾號、獲得介面許可權後，可閱讀開發人員文檔協助完成接入及功能開發。</h3> </hgroup> </div> </div> </body></html>
css 在背景圖上加漸層
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