Cách tạo slider kiểu Netflix bằng HTML, CSS và JavaScript
Netflix có bố cục trang web khá bóng bẩy. Chắc phải cần cả một đội ngũ thiết kế và phát triển để copy nó phải không? Sai. Bài viết này sẽ hướng dẫn bạn cách làm.
Table of Contents
Slider (dạng trình chiếu thông tin trên các thanh trượt) của Netflix là một trong những slider được yêu thích nhất trên internet. NÓ này cho phép người dùng cuộn theo chiều ngang qua nội dung và di chuột vào các mục để xem bản xem trước (preview).
Bây giờ chúng ta hãy đi vào phần code. Bạn có thể sử dụng bất kỳ tập lệnh nào trong số này để tạo thanh trượt kiểu Netflix theo lựa chọn của bạn.
Slider kiểu Netflix với các nút điều hướng (navigation button) sử dụng CSS thuần túy
Khi di chuột:
Sử dụng các đoạn mã HTML và CSS sau để tạo thanh trượt kiểu Netflix ở trên.
Mã HTML
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Netflix Carousel</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<h1>NETFLIX</h1>
<div class="wrapper">
<section id="section1">
<a href="#section3" class="arrow__btn">‹</a>
<div class="item">
<img src="https://occ-0-1567-1123.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABRvngexxF8H1-OzRWFSj6ddD-aB93tTBP9kMNz3cIVfuIfLEP1E_0saiNAwOtrM6xSOXvoiSCMsihWSkW0dq808-R7_lBnr6WHbjkKBX6I3sD0uCcS8kSPbRjEDdG8CeeVXEAEV6spQ.webp">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABZEK-7pZ1H5FD4cTyUb9qB_KeyJGz5p-kfPhCFv4GU_3mbdm8Xfsy4IBchlG9PFNdGff8cBNPaeMra72VFnot41nt0y3e8RLgaVwwh3UvyM2H2_MkmadWbQUeGuf811K7-cxJJh7gA.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABQCoK53qihwVPLRxPEDX98nyYpGbxgi5cc0ZOM4iHQu7KQvtgNyaNM5PsgI0vy5g3rLPZdjGCFr1EggrCPXpL77p2H08jV0tNEmIfs_e8KUfvBJ6Ay5nM4UM1dl-58xA6t1swmautOM.webp">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABdYtAqj8CyaJTWq5taD8Ro_UgwH3nne9QpFGVps-2J3IG-leqrfqXFii4jzZn48nPYTkrlwKQEV0R7_cEKlYBPRzdKqNODc-Oz26IL3LlLgFboXibIWXwxzeYxzuqn0I9TpARjeByw.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABbcCX42tsqGbBvO2y9CQv5-7QvYbCfoHtXsuc6NPCtZaKa4l4fBX3XWvUwG9F2A3CTsNpHVmulxBbdXKwK8Q6xGjejd9FoadGkZ7CnGrSl601TOQjzSHJ23NuIPC8j0QMGORL4uRIA.jpg">
</div>
<a href="#section2" class="arrow__btn">›</a>
</section>
<section id="section2">
<a href="#section1" class="arrow__btn">‹</a>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABVopDZ5Fy9_fk_HO5WxHTXKKjKhtWFupbSjuvPwfLK_vytzon4EwRUdGgYJ34JwPxOTK_NkV3aXfkULMB0Dcct-FyfqzH-X44VXuRMp4QeBHlvKwWeZFpZlGdItPzmmg4scmwhG7SQ.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABTOj1-116yVcgKWMU2dI3GFR4x0fSkiGsqtLLeLUxRR7STaksjAqBTrYlTfrB8nIGnGvXksi0ewXAhVGg6-pLxpFOIfcpjK-pf8D5xehFZo5a6vJbo4L0AGbrzglbyUoq255QBJgRQ.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABd3IBDpxbRcHXvRMFCZeKa2aHLU1P4SJtrACMS9om3yhLjqPlvNlmR_fypPxjtbsbnKaC4JZhPSpDG4r_kdxSHHAltWguMcCB-1Y1OShr2zWfUv7Whf_39fNH5ZJ3_0gxQrs0akmQjQz44_LT7jXH5LMZ7iMBAzac5IEj4m7Fn_5OWEGYnVsDsKG-QTommDooULMDF9bEw.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABXSd7bhDddcwkq9XpksoQFCHVx29Sxl_h4hb2n3F2GIt32a4XWcOnctQfgnT5qdolv8UML6_xNB5CJ89h56wueb13mYmEBr0sx5e9iLPdtVcOQAOmKXKWHHXwFvJuCUwuNnL3s8eAQwqLXPVMHMEsujM684rUGrZNF2btN2GRy5-RyEslsxZO93V2Q_H2bWs8A8oayt1h5M.webp">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABbXWODpAWqVXcmmjMA7K-2mPkQpvwCLfSdeyhVXzR8A3MSpdSEnnjf4HEJJTYC-TnktU6njTUGAxmzWEYCaJbk4v_ZeL-7QGzmkvYBjg_N-evr2XmcX-Fanoyvu_nimFP4iigPe4O3Vr_WcgplhwkDrJwPUJa84wRLrNAx3TufN5V7cWRP4indqu5HQahvgFEqfL9zjp4g.jpg">
</div>
<a href="#section3" class="arrow__btn">›</a>
</section>
<section id="section3">
<a href="#section2" class="arrow__btn">‹</a>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABRr4YxdaABuAuH_3FmSQZn7BCvLp-UUPsXE9MiYpvFP3CSUHV2zOew5oVqKqqdaOd3tbFVS0Uf67uIs7_eZydlCghg4nK0nMatRpPImABwTOhnNzCLCxdKrua7pPIcPCZqBYTeAO5g.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/412e4119fb212e3ca9f1add558e2e7fed42f8fb4/AAAABTyWK1MKaw8GcObtz47R2Tj7wkLJ7qQu9tk6TVpcoyxpzD4B-zZ569bQ5vGrREBL-MWFkGilXUwy7tCDaj2XOGkUB4RsbbFAmp9NgSr6lygMpUGNHSlyfrFbUORsRkrxSIoh_ggOvg.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABY7NwkWEJIfXsn6t3Li4bGSCQ1nEErPisI5ZZtXlC-_VRBZOUrhWK5X3vt3t6SR_cpgVhCwxgQqFFDJhk62Kk8hawOnYGZMr0LKeLczMFV2zalCFjkcdLksvT4HB2LEi6LFyruyk3Uu0LmNGsHfC2A8Bly60smr_3sDbz4RruXcklPOG1qYq9wUVu3zfaiwNvqmG4b8aFA.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABemXHOga9feFnOux6I2YyACBD94wvM7N3vcTGIfMpQ_BcaXeoeM9XyzdVdamKtxt0SHXZfvsl6czcp3E48tXMLtHBxuQsh1BjHtPGgJDZ81je_FjItINiqzLtir0A30s_e4KR8G3d7AYAPDjZVOY97bNpzNqtkcHcGp7fGnJByVCps1uLfG9U9tK3Ma1A_3JbRt0NiT2_Q.jpg">
</div>
<div class="item">
<img src="https://occ-0-243-299.1.nflxso.net/dnm/api/v5/rendition/a76057bcfd003711a76fb3985b1f2cf74beee3b8/AAAABVxuRB932hvre-XP0gh6ar5ztoR3Oe3QjKHkyvcDnRak2MKXOrx5H7mFQSvggefMFOppwEs7ZCCpiqrJ_CYGvtvYB9NpU4SWUtNO6uV2u-DTID267AcHjHcGvGBQJ1ufddDkxcGOZyi5MlOQ5QUmBun4652FbYUnib3zMYQDgcna_Pvz8y_HO5fbokxezrRR1JZAAiqFSQ.jpg">
</div>
<a href="#section1" class="arrow__btn">›</a>
</section>
</div>
</body>
</html>
Mã CSS
html {
scroll-behavior: smooth;
}
body {
margin: 0;
background-color: #000;
}
h1 {
font-family: Arial;
color: red;
text-align: center;
}
.wrapper {
display: grid;
grid-template-columns: repeat(3, 100%);
overflow: hidden;
scroll-behavior: smooth;
}
.wrapper section {
width: 100%;
position: relative;
display: grid;
grid-template-columns: repeat(5, auto);
margin: 20px 0;
}
.wrapper section .item {
padding: 0 2px;
transition: 250ms all;
}
.wrapper section .item:hover {
margin: 0 40px;
transform: scale(1.2);
}
.wrapper section a {
position: absolute;
color: #fff;
text-decoration: none;
font-size: 6em;
background: black;
width: 80px;
padding: 20px;
text-align: center;
z-index: 1;
}
.wrapper section a:nth-of-type(1) {
top: 0;
bottom: 0;
left: 0;
background: linear-gradient(-90deg, rgba(0, 0, 0, 0) 0%, black 100%);
}
.wrapper section a:nth-of-type(2) {
top: 0;
bottom: 0;
right: 0;
background: linear-gradient(90deg, rgba(0, 0, 0, 0) 0%, black 100%);
}
@media only screen and (max-width: 600px) {
a.arrow__btn {
display: none;
}
}
Slider kiểu Netflix với thanh cuộn ngang sử dụng CSS thuần túy
Khi di chuột:
Sử dụng các đoạn mã HTML và CSS sau để tạo thanh trượt kiểu Netflix ở trên.
Mã HTML
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Netflix Carousel</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="contain">
<h1>Pure CSS Netflix Video Carousel</h1>
<div class="row">
<div class="row__inner">
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-1.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-2.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-3.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-4.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-5.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-6.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
<div class="tile">
<div class="tile__media">
<img class="tile__img" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/70390/show-7.jpg" />
</div>
<div class="tile__details">
<div class="tile__title">
Top Gear
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
Mã CSS
body,
html {
padding: 0 10px;
margin: 0;
background: #0e0f11;
color: #ecf0f1;
font-family: 'Open Sans', sans-serif;
min-height: 100vh;
display: flex;
flex-direction: row;
align-items: center;
width: 100%;
}
* {
box-sizing: border-box;
}
h1 {
text-align: center;
}
a:link,
a:hover,
a:active,
a:visited {
transition: color 150ms;
color: #95a5a6;
text-decoration: none;
}
a:hover {
color: #7f8c8d;
text-decoration: underline;
}
.contain {
width: 100%;
}
.row {
overflow: scroll;
overflow-y: hidden;
width: 100%;
}
.row__inner {
transition: 450ms transform;
font-size: 0;
white-space: nowrap;
margin: 70.3125px 0;
padding-bottom: 10px;
}
.tile {
position: relative;
display: inline-block;
width: 250px;
height: 140.625px;
margin-right: 10px;
font-size: 20px;
cursor: pointer;
transition: 450ms all;
transform-origin: center left;
}
.tile__img {
width: 250px;
height: 140.625px;
-o-object-fit: cover;
object-fit: cover;
}
.tile__details {
position: absolute;
bottom: 0;
left: 0;
right: 0;
top: 0;
font-size: 10px;
opacity: 0;
background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0) 100%);
transition: 450ms opacity;
}
.tile__details:after,
.tile__details:before {
content: '';
position: absolute;
top: 50%;
left: 50%;
display: #000;
}
.tile__details:after {
margin-top: -25px;
margin-left: -25px;
width: 50px;
height: 50px;
border: 3px solid #ecf0f1;
line-height: 50px;
text-align: center;
border-radius: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 1;
}
.tile__details:before {
content: '▶';
left: 0;
width: 100%;
font-size: 30px;
margin-left: 7px;
margin-top: -18px;
text-align: center;
z-index: 2;
}
.tile:hover .tile__details {
opacity: 1;
}
.tile__title {
position: absolute;
bottom: 0;
padding: 10px;
}
.row__inner:hover {
transform: translate3d(-62.5px, 0, 0);
}
.row__inner:hover .tile {
opacity: 0.3;
}
.row__inner:hover .tile:hover {
transform: scale(1.5);
opacity: 1;
}
.tile:hover~.tile {
transform: translate3d(125px, 0, 0);
}
Slider kiểu Netflix với các nút điều hướng sử dụng CSS và JavaScript
Khi di chuột:
Sử dụng các đoạn mã HTML, CSS và JavaScript sau để tạo thanh trượt kiểu Netflix ở trên.
Mã HTML
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Netflix Carousel</title>
<link rel="stylesheet" href="styles.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<div id="carousel" class="container">
<div class="control-container">
<div id="left-scroll-button" class="left-scroll button scroll">
<i class="fa fa-chevron-left" aria-hidden="true"></i>
</div>
<div id="right-scroll-button" class="right-scroll button scroll">
<i class="fa fa-chevron-right" aria-hidden="true"></i>
</div>
</div>
<div class="items" id="carousel-items">
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcSLL02A4Mlhjj7WVPvke3dbXz_c7_IsnMo4xboyqdy3mI01UxdX" />
<span class="item-title">Going In Style</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcR-dYeeUv4ZstPOToXNhAYR3r1h57lJgzqMPDYHPskCGkbhbzfp" />
<span class="item-title">Boss Baby</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcSLL02A4Mlhjj7WVPvke3dbXz_c7_IsnMo4xboyqdy3mI01UxdX" />
<span class="item-title">Going In Style</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcR-dYeeUv4ZstPOToXNhAYR3r1h57lJgzqMPDYHPskCGkbhbzfp" />
<span class="item-title">Boss Baby</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcSLL02A4Mlhjj7WVPvke3dbXz_c7_IsnMo4xboyqdy3mI01UxdX" />
<span class="item-title">Going In Style</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcR-dYeeUv4ZstPOToXNhAYR3r1h57lJgzqMPDYHPskCGkbhbzfp" />
<span class="item-title">Boss Baby</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcSLL02A4Mlhjj7WVPvke3dbXz_c7_IsnMo4xboyqdy3mI01UxdX" />
<span class="item-title">Going In Style</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
<div class="item">
<img class="item-image" src="https://t1.gstatic.com/images?q=tbn:ANd9GcR-dYeeUv4ZstPOToXNhAYR3r1h57lJgzqMPDYHPskCGkbhbzfp" />
<span class="item-title">Boss Baby</span>
<span class="item-load-icon button opacity-none"><i class="fa fa-play"></i></span>
<div class="item-description opacity-none">Lorem ipsum dolor sit amet, lorem ipsum dolor sit amet.</div>
</div>
</div>
</div>
<script type="text/javascript" src="script.js"></script>
</body>
</html>
Mã CSS
body {
background-color: #343434;
margin: 0;
padding: 0;
margin: auto;
}
div.items {
white-space: nowrap;
flex-flow: row nowrap;
justify-content: space-between;
overflow: hidden;
display: flex;
align-self: center;
}
div.items:hover .item {
opacity: 0.3;
}
div.items:hover .item:hover {
opacity: 1;
}
div.control-container {
height: 300px;
position: absolute;
width: 100%;
overflow: hidden;
box-sizing: border-box;
}
div.container {
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
min-height: 300px;
position: relative;
width: 100%;
box-sizing: border-box;
overflow: hidden;
display: flex;
flex-flow: row nowrap;
justify-content: center;
}
div.left-scroll {
left: 0;
}
div.left-scroll i {
transform: translate(-60%, -50%);
}
div.right-scroll {
right: 0;
}
div.right-scroll i {
transform: translate(-40%, -50%);
}
div.scroll {
position: absolute;
display: inline-block;
color: #f6f6f6;
top: 50%;
transform: translate(0, -50%);
width: 60px;
height: 60px;
border: 1px solid #f6f6f6;
border-radius: 60px;
margin: 0 5px;
z-index: 951;
}
div.scroll i {
font-size: 30px;
position: relative;
left: 50%;
top: 50%;
}
.item {
position: relative;
align-self: center;
width: 200px;
height: 200px;
margin: 0 3px;
transition: all 0.3s ease-in-out;
cursor: pointer;
z-index: 899;
}
.item:hover {
transform: scale(1.5);
margin: 30px;
opacity: 1;
z-index: 950;
}
.item:hover .opacity-none {
opacity: 1;
}
.item .item-load-icon {
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
.item .opacity-none {
opacity: 0;
}
.item img.item-image {
width: 200px;
height: 200px;
-o-object-fit: cover;
object-fit: cover;
}
.item .item-title {
color: #f6f6f6;
position: absolute;
margin: 5px 0;
padding: 10px 0;
width: 100%;
left: 50%;
top: 0;
transform: translate(-50%, 0);
background: rgba(0, 0, 0, 0.5);
text-align: center;
}
.item .item-description {
color: #f6f6f6;
font-size: 12px;
position: absolute;
bottom: 0;
left: 50%;
transform: translate(-50%, 0);
white-space: pre-wrap;
width: 100%;
background: rgba(0, 0, 0, 0.5);
margin: 5px 0;
padding: 10px 0;
}
.button {
position: absolute;
color: #f6f6f6;
font-size: 30px;
border: 1px solid #f6f6f6;
width: 60px;
height: 60px;
border-radius: 60px;
z-index: 950;
background-color: rgba(0, 0, 0, 0.7);
transition: all 0.3s ease-in-out;
}
.button i {
position: relative;
top: 50%;
left: 50%;
transform: translate(-35%, -55%);
z-index: 950;
}
.button:hover {
box-shadow: 0px 0px 50px #FFFFFF;
}
Mã JavaScript
function MouseWheelHandler(e, element) {
var delta = 0;
if (typeof e === 'number') {
delta = e;
} else {
if (e.deltaX !== 0) {
delta = e.deltaX;
} else {
delta = e.deltaY;
}
e.preventDefault();
}
element.scrollLeft -= (delta);
}
window.onload = function() {
var carousel = {};
carousel.e = document.getElementById('carousel');
carousel.items = document.getElementById('carousel-items');
carousel.leftScroll = document.getElementById('left-scroll-button');
carousel.rightScroll = document.getElementById('right-scroll-button');
carousel.items.addEventListener("mousewheel", handleMouse, false);
carousel.items.addEventListener("scroll", scrollEvent);
carousel.leftScroll.addEventListener("click", leftScrollClick);
carousel.rightScroll.addEventListener("click", rightScrollClick);
setLeftScrollOpacity();
setRightScrollOpacity();
function handleMouse(e) {
MouseWheelHandler(e, carousel.items);
}
function leftScrollClick() {
MouseWheelHandler(100, carousel.items);
}
function rightScrollClick() {
MouseWheelHandler(-100, carousel.items);
}
function scrollEvent(e) {
setLeftScrollOpacity();
setRightScrollOpacity();
}
function setLeftScrollOpacity() {
if (isScrolledAllLeft()) {
carousel.leftScroll.style.opacity = 0;
} else {
carousel.leftScroll.style.opacity = 1;
}
}
function isScrolledAllLeft() {
if (carousel.items.scrollLeft === 0) {
return true;
} else {
return false;
}
}
function isScrolledAllRight() {
if (carousel.items.scrollWidth > carousel.items.offsetWidth) {
if (carousel.items.scrollLeft + carousel.items.offsetWidth === carousel.items.scrollWidth) {
return true;
}
} else {
return true;
}
return false;
}
function setRightScrollOpacity() {
if (isScrolledAllRight()) {
carousel.rightScroll.style.opacity = 0;
} else {
carousel.rightScroll.style.opacity = 1;
}
}
}
Nếu bạn muốn xem toàn bộ mã nguồn được sử dụng trong bài viết này, đây là kho lưu trữ GitHub.
Lưu ý : Mã được sử dụng trong bài viết này là MIT Licensed (được MIT đăng ký bản quyền).
Dịch từ: https://www.makeuseof.com/netflix-style-slider-component-css-and-javascript/
Vân Nguyễn
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