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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                三盒子的三屬性 盒子三屬性 width , height, background-color width: 是寬度的意思 height: 是高度的意思 屬性值都是以px為單位的數值 background-color : 屬于 background系列屬性的一種 屬性值和color 一樣分為單詞和顏色值表示法 ``` <div style="width:100px;height:100px;background-color:red"> </div> ``` 就會輸出一個紅色方塊
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