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## zh-CN
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[查询模式: 确定类目 ](https://ant.design/docs/spec/reaction#lookup-patterns ) 示例。
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## en-US
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Demonstration of [Lookup Patterns: Certain Category ](https://ant.design/docs/spec/reaction#lookup-patterns ). Basic Usage, set options of autocomplete with `options` property.
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```css
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.certain-category-search-dropdown .ant-select-dropdown-menu-item-group-title {
color: #666 ;
font-weight: bold;
}
.certain-category-search-dropdown .ant-select-dropdown-menu-item-group {
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border-bottom: 1px solid #f6f6f6 ;
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}
.certain-category-search-dropdown .ant-select-dropdown-menu-item {
padding-left: 16px;
}
.certain-category-search-dropdown .ant-select-dropdown-menu-item.show-all {
text-align: center;
cursor: default;
}
.certain-category-search-dropdown .ant-select-dropdown-menu {
max-height: 300px;
}
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```
