Sublime Text
<!DOCTYPE html> <html> <head> <title>Xem ví dụ</title> <style> input[type="checkbox"]:focus{ width:50px; height:50px; } </style> </head> <body> <input type="text" placeholder="Nhập họ tên"> <br><br> <input type="checkbox" value="html"> HTML <br><br> <input type="checkbox" value="css"> CSS <br><br> <input type="radio" name="gender" value="nam"> Nam <br><br> <input type="radio" name="gender" value="nu"> Nữ </body> </html>
<!DOCTYPE html> <html> <head> <title>Xem ví dụ</title> <style> input[type="checkbox"]:focus{ width:50px; height:50px; } </style> </head> <body> <input type="text" placeholder="Nhập họ tên"> <br><br> <input type="checkbox" value="html"> HTML <br><br> <input type="checkbox" value="css"> CSS <br><br> <input type="radio" name="gender" value="nam"> Nam <br><br> <input type="radio" name="gender" value="nu"> Nữ </body> </html>