Làm thế nào để bạn ẩn trong html5?

document.addEventListener("DOMContentLoaded", function() { initialiseMediaPlayer(); }, false);


function initialiseMediaPlayer() {

    mediaPlayer = document.getElementById('media-video');

    mediaPlayer.controls = false;

    mediaPlayer.addEventListener('volumechange', function(e) { 
        // Update the button to be mute/unmute
        if (mediaPlayer.muted) changeButtonType(muteBtn, 'unmute');
        else changeButtonType(muteBtn, 'mute');
    }, false);  
    mediaPlayer.addEventListener('ended', function() { this.pause(); }, false); 
}

Để chạy chương trình trên ta lưu tên file “anyName. html(chỉ mục. html)”. Nhấp chuột phải vào tệp và chọn tùy chọn “Mở bằng Máy chủ Trực tiếp” trong trình chỉnh sửa Visual Studio Code

đầu ra

Điều này sẽ tạo ra đầu ra sau trên bảng điều khiển -

Trong đầu ra mẫu ở trên, thẻ video đã bị tắt. Nếu bạn muốn kích hoạt, chỉ cần bình luận dòng trên i. e

Để ẩn một phần tử trong bố cục đáp ứng, chúng ta cần sử dụng thuộc tính hiển thị CSS được đặt thành giá trị "none" cùng với quy tắc @media. Nội dung thứ hai

phần tử có lớp "hidden-mobile" sẽ bị ẩn trên các thiết bị nhỏ hơn 767px

  
    
    
  
  
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This text will be hidden on large devices.
    
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Để hiển thị một phần tử trên các thiết bị siêu nhỏ (điện thoại <768px) và thiết bị trung bình (máy tính để bàn ≥992px) và ẩn phần tử đó trên các thiết bị nhỏ (máy tính bảng ≥768px), bạn cần thử cách sau

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
There is some text for example.
  

Trong Bootstrap 3. 4. 1, chúng ta có thể sử dụng class "hidden-xs" để ẩn một phần tử trên điện thoại. Vì vậy, trong ví dụ tiếp theo, chúng tôi trình bày cách một phần tử sẽ được ẩn trên các thiết bị cực nhỏ

  
    
    
    
  
  
    Hi
    
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    This text will be hidden on phones.
    
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Trong Bootstrap 4, lớp ẩn-* (cũng hiển thị-*) không còn tồn tại nữa. Để ẩn một phần tử trên một số tầng hoặc điểm dừng, bạn cần sử dụng các lớp hiển thị d-*

Một thiết bị cực nhỏ (xs) là điểm dừng mặc định nếu nó không bị điểm ngắt lớn hơn ghi đè. Do đó, trung tố -xs không còn tồn tại trong Bootstrap 4

Trong Bootstrap 4. 3, để chỉ ẩn một phần tử trên các thiết bị trung bình, hãy sử dụng các lớp "d-md-none" và "d-lg-block"

Thuộc tính hiển thị kiểu được sử dụng để ẩn và hiển thị nội dung của HTML DOM bằng cách truy cập phần tử DOM bằng JavaScript/jQuery.  

Để ẩn một phần tử, hãy đặt thuộc tính hiển thị kiểu thành “không”

document.getElementById("element").style.display = "none";

Để hiển thị một phần tử, hãy đặt thuộc tính hiển thị kiểu thành “chặn”

document.getElementById("element").style.display = "block";

• Tạo một số div và gán cho chúng một id hoặc lớp rồi thêm kiểu dáng cho nó.  

HTML

  
    
    
  
  
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05

document.getElementById("element").style.display = "block";

0

  
    
    
  
  
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document.getElementById("element").style.display = "block";

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document.getElementById("element").style.display = "block";

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document.getElementById("element").style.display = "block";

7

document.getElementById("element").style.display = "block";

0

  
    
    
  
  
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document.getElementById("element").style.display = "block";

2

  
    
    
  
  
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document.getElementById("element").style.display = "block";

0

  
    
    
  
  
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02

document.getElementById("element").style.display = "block";

2

• Chiều rộng và chiều cao sẽ đặt chiều rộng và chiều cao của nội dung, bán kính đường viền 0% sẽ tạo đường viền hình vuông, 50% sẽ tạo hình tròn và 25% sẽ tạo hình tròn và float sẽ định vị các div, lề phải .  

CSS

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029____1030

  
    
    
  
  
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035

  
    
    
  
  
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035

  
    
    
  
  
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036

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036

  
    
    
  
  
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028

  
    
    
  
  
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032

  
    
    
  
  
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028

  
    
    
  
  
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035

  
    
    
  
  
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036

  
    
    
  
  
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032

  
    
    
  
  
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038

  
    
    
  
  
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034

  
    
    
  
  
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035

  
    
    
  
  
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036

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032

  
    
    
  
  
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047

  
    
    
  
  
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034

  
    
    
  
  
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049

  
    
    
  
  
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036

  
    
    
  
  
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032

  
    
    
  
  
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052

  
    
    
  
  
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034

  
    
    
  
  
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054

  
    
    
  
  
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036

  
    
    
  
  
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028

  
    
    
  
  
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057

  
    
    
  
  
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032

  
    
    
  
  
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029____500

  
    
    
  
  
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031

  
    
    
  
  
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032

  
    
    
  
  
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033____1034

  
    
    
  
  
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035

  
    
    
  
  
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036

  
    
    
  
  
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032

  
    
    
  
  
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038

  
    
    
  
  
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034

  
    
    
  
  
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035

  
    
    
  
  
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036

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032

  
    
    
  
  
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047

  
    
    
  
  
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034

  
    
    
  
  
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049

  
    
    
  
  
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036

  
    
    
  
  
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032

  
    
    
  
  
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052

  
    
    
  
  
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034

  
    
    
  
  
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054

  
    
    
  
  
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057

• Màu nền sẽ đặt màu nền của div.  

CSS

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032

document.getElementById("element").style.display = "block";

32

  
    
    
  
  
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034

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34

  
    
    
  
  
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032

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032

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32

  
    
    
  
  
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034

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28

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057

• Tài liệu. getElementById sẽ chọn div với id đã cho.  

Javascript

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032

document.getElementById("element").style.display = "block";

62

  
    
    
  
  
    Hi
    
There is some text for example.
    
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05

document.getElementById("element").style.display = "block";

64

document.getElementById("element").style.display = "block";

65

document.getElementById("element").style.display = "block";

66

• phong cách. display = “none” sẽ làm cho nó biến mất khi nhấp vào div.  

CSS

________ 567 ________ 568 ________ 1036

Thực hiện phong cách. tài sản hiển thị.  

HTML

document.getElementById("element").style.display = "block";

70

  
    
    
  
  
    Hi
    
There is some text for example.
    
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01____572____52

  
    
    
  
  
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01

document.getElementById("element").style.display = "block";

75

document.getElementById("element").style.display = "block";

2

 

  
    
    
  
  
    Hi
    
There is some text for example.
    
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028

  
    
    
  
  
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01____579

document.getElementById("element").style.display = "block";

80

document.getElementById("element").style.display = "block";

79

document.getElementById("element").style.display = "block";

2

 

  
    
    
  
  
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028

  
    
    
  
  
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01____585

document.getElementById("element").style.display = "block";

86

  
    
    
  
  
    Hi
    
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04

  
    
    
  
  
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026

document.getElementById("element").style.display = "block";

2

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

document.getElementById("element").style.display = "block";

91

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

93

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

95

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

97

document.getElementById("element").style.display = "block";

92____599

_______592____10101

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

  
    
    
  
  
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0103

  
    
    
  
  
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032

  
    
    
  
  
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060

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

93

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

95

document.getElementById("element").style.display = "block";

92____10111

document.getElementById("element").style.display = "block";

92____599

_______592____10101

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
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032

  
    
    
  
  
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057

  
    
    
  
  
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There is some text for example.
    
This text will be hidden on large devices.
    
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032

  
    
    
  
  
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0119

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

93

document.getElementById("element").style.display = "block";

92

document.getElementById("element").style.display = "block";

95

document.getElementById("element").style.display = "block";

92____10125

document.getElementById("element").style.display = "block";

92____599

_______592____10101

  
    
    
  
  
    Hi
    
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032

  
    
    
  
  
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0103

  
    
    
  
  
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032

  
    
    
  
  
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0133

document.getElementById("element").style.display = "block";

92____10135

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

  
    
    
  
  
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057

  
    
    
  
  
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032

document.getElementById("element").style.display = "block";

39

document.getElementById("element").style.display = "block";

92____10141

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

  
    
    
  
  
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0103

  
    
    
  
  
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032

  
    
    
  
  
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0145

document.getElementById("element").style.display = "block";

92____10147

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

  
    
    
  
  
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057

  
    
    
  
  
    Hi
    
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This text will be hidden on large devices.
    
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028

  
    
    
  
  
    Hi
    
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There is some text for example.
  

0151

document.getElementById("element").style.display = "block";

85

document.getElementById("element").style.display = "block";

2

________ 10151 ________ 575 ________ 52

 

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
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01

  
    
    
  
  
    Hi
    
There is some text for example.
    
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0158

document.getElementById("element").style.display = "block";

2

 

  
    
    
  
  
    Hi
    
There is some text for example.
    
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028

  
    
    
  
  
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01

  
    
    
  
  
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02

  
    
    
  
  
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03

  
    
    
  
  
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04

  
    
    
  
  
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05

  
    
    
  
  
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06

  
    
    
  
  
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04

  
    
    
  
  
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There is some text for example.
    
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05

document.getElementById("element").style.display = "block";

0

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
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02

document.getElementById("element").style.display = "block";

2

  
    
    
  
  
    Hi
    
There is some text for example.
    
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028

  
    
    
  
  
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01_______102

  
    
    
  
  
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03

  
    
    
  
  
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04

document.getElementById("element").style.display = "block";

7

  
    
    
  
  
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06

  
    
    
  
  
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04

document.getElementById("element").style.display = "block";

7

document.getElementById("element").style.display = "block";

0

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
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02

document.getElementById("element").style.display = "block";

2

  
    
    
  
  
    Hi
    
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028

  
    
    
  
  
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01

  
    
    
  
  
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02

  
    
    
  
  
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03

  
    
    
  
  
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04

  
    
    
  
  
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018

  
    
    
  
  
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06

  
    
    
  
  
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04

  
    
    
  
  
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018

document.getElementById("element").style.display = "block";

0

  
    
    
  
  
    Hi
    
There is some text for example.
    
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02

document.getElementById("element").style.display = "block";

2

 

  
    
    
  
  
    Hi
    
There is some text for example.
    
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028

  
    
    
  
  
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01____10198

document.getElementById("element").style.display = "block";

86

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
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04

document.getElementById("element").style.display = "block";

59

document.getElementById("element").style.display = "block";

2

  
    
    
  
  
    Hi
    
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032

  
    
    
  
  
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0204

_______592____10206

  
    
    
  
  
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032

  
    
    
  
  
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057

 

  
    
    
  
  
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032

  
    
    
  
  
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0210

document.getElementById("element").style.display = "block";

92____10212

  
    
    
  
  
    Hi
    
There is some text for example.
    
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032

  
    
    
  
  
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057

 

  
    
    
  
  
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032

  
    
    
  
  
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0216

document.getElementById("element").style.display = "block";

92____10218

  
    
    
  
  
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There is some text for example.
    
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032

  
    
    
  
  
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057

  
    
    
  
  
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028

  
    
    
  
  
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0151

  
    
    
  
  
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There is some text for example.
    
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0198

document.getElementById("element").style.display = "block";

2

________ 10151 ________ 10158 ________ 52

  
    
    
  
  
    Hi
    
There is some text for example.
    
This text will be hidden on large devices.
    
There is some text for example.
  

0151____572

document.getElementById("element").style.display = "block";

2

đầu ra. Đầu ra của đoạn mã trên là.  

Hình vuông sẽ biến mất sau khi nhấp vào nó.  

Hình tròn tương tự sẽ biến mất sau khi nhấp vào nó.  

Tương tự, hình tròn sẽ biến mất sau khi nhấp vào nó

HTML là nền tảng của các trang web, được sử dụng để phát triển trang web bằng cách cấu trúc các trang web và ứng dụng web. Bạn có thể học HTML từ đầu bằng cách làm theo Hướng dẫn HTML và Ví dụ về HTML này