摘要:
<!DOCTYPE html Unicode和字符的转换工具 div{ display:flex; } input{ font size:20px; line height:100px; text align:center; background color: eee; } button{ widt 阅读全文
摘要:
<!DOCTYPE html 计算器 .container{ margin:0 auto; width:600px; height:600px; background color: ccc; display:flex; padding:10px; flex wrap:wrap; justify co 阅读全文
摘要:
<!DOCTYPE html 表单验证 input,button{ box sizing: border box; width:300px; padding:10px; font size:16px; line height: 18px; border:1px solid ccc; } button 阅读全文