js实现简单倒计时
摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> </head> <bod
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posted @ 2023-02-08 18:02
随笔分类 - html
html
html多选框，全选和全不选功能
摘要：<!DOCTYPE html> <html> <head> <title></title> </head> <style type="text/css"> /*浏览器格式化，消除页面预留空间*/ *{ margin: 0; padding: 0; } /*适应各种浏览器屏幕尺寸*/ body{ wi
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posted @ 2021-10-28 10:49
