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                ### CSS濾鏡(filter)屬提供的圖形特效,像模糊,銳化或元素變色。過濾器通常被用于調整圖片,背景和邊界的渲染 #### filter: none 沒有任何效果,默認filter就為none #### filter:blur( ) 高斯模糊 給圖像一個高斯模糊效果,值越大,圖像越模糊 ``` img { filter:blur(2px);; } ``` #### brightness(%) 線性乘法 可以讓圖片看起來更亮或者更暗 ``` img { filter:brightness(70%); } ``` #### contrast(%) 對比度 調整圖像的對比度。 ``` img { filter:contrast(50%); } ```
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