「及時」模式:全新世代的 Tailwind CSS
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Drop Shadow

Utilities for applying drop-shadow filters to an element.

Default class reference

Class
屬性
drop-shadow-sm--tw-drop-shadow: drop-shadow(0 1px 1px rgba(0,0,0,0.05));
drop-shadow--tw-drop-shadow: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1)) drop-shadow(0 1px 1px rgba(0, 0, 0, 0.06));
drop-shadow-md--tw-drop-shadow: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.07)) drop-shadow(0 2px 2px rgba(0, 0, 0, 0.06));
drop-shadow-lg--tw-drop-shadow: drop-shadow(0 10px 8px rgba(0, 0, 0, 0.04)) drop-shadow(0 4px 3px rgba(0, 0, 0, 0.1));
drop-shadow-xl--tw-drop-shadow: drop-shadow(0 20px 13px rgba(0, 0, 0, 0.03)) drop-shadow(0 8px 5px rgba(0, 0, 0, 0.08));
drop-shadow-2xl--tw-drop-shadow: drop-shadow(0 25px 25px rgba(0, 0, 0, 0.15));
drop-shadow-none--tw-drop-shadow: drop-shadow(0 0 #0000);

Usage

Use the drop-shadow-{amount} utilities alongside the filter utility to add a drop shadow to an element.

<div class="filter drop-shadow-lg ...">
  <!-- ... -->
</div>

Responsive

To control an element’s drop shadow at a specific breakpoint, add a {screen}: prefix to any existing drop-shadow utility. For example, use md:drop-shadow-xl to apply the drop-shadow-xl utility at only medium screen sizes and above.

<div class="filter drop-shadow-md md:drop-shadow-xl ...">
  <!-- ... -->
</div>

For more information about Tailwind’s responsive design features, check out the Responsive Design documentation.

Customizing

You can customize which drop-shadow utilities are generated using the dropShadow key in the theme section of your tailwind.config.js file.

  // tailwind.config.js
  module.exports = {
    theme: {
+     extend: {
+       dropShadow: {
+         '3xl': '0 35px 35px rgba(0, 0, 0, 0.25)',
+       }
+     }
    }
  }

Learn more about customizing the default theme in the theme customization documentation.

Variants

默認情況下, 只有 響應式 的 drop-shadow 變化模式 (variants) 會產生。

tailwind.config.jsvariants 區塊中變更 dropShadow 屬性來決定有哪些變化模式會生成。

舉個例子來說,這個設定將會生成 響應式 和 hover 的變化模式。

  // tailwind.config.js
  module.exports = {
    variants: {
      extend: {
        // ...
+       dropShadow: ['responsive', 'hover'],
      }
    }
  }

Disabling

如果你不打算在專案中使用 drop-shadow 功能,可以在你的設定檔裡的 corePlugins 屬性中將 dropShadow 設定為 false 來停用功能:

  // tailwind.config.js
  module.exports = {
    corePlugins: {
      // ...
+     dropShadow: false,
    }
  }