background背景图片全屏

要实现背景图片全屏显示，可以使用CSS的background-size属性。这个属性用于控制背景图片的大小。通过设置background-size: cover;，可以让背景图片自适应容器的大小，并覆盖整个背景区域，实现全屏效果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *3* [CSS实现网页背景图片自适应全屏的方法](https://download.csdn.net/download/weixin_38689055/13607972)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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