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⚡️ Lesson-14: About Attribues set,get,remove etc.
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‎DOM Course/Lesson-14 Attributes/app.js

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//Delete Books
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const lists = document.querySelector('#book-list ul')
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lists.addEventListener('click', function (e) {
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if (e.target.className == 'delete') {
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const li = e.target.parentNode
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lists.removeChild(li)
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}
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})
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//add book-lits
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const addBooks = document.forms['add-book'];
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addBooks.addEventListener('submit', function (e) {
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e.preventDefault();
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const value = addBooks.querySelector('input[type="text"]').value
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console.log(value)
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//Add ELements
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const li = document.createElement('li')
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const bookName = document.createElement('span')
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const deleteBtn = document.createElement('span')
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//add content
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bookName.textContent = value
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deleteBtn.textContent = 'delete'
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//Styles and CLasses by classList
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bookName.classList.add('book')
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deleteBtn.classList.add('delete')
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//Append these Elements to document
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li.appendChild(bookName);
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li.appendChild(deleteBtn);
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lists.appendChild(li)
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})
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var book = document.querySelector('li:first-child .name')
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console.log(book)
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//Getting ClassName
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console.log(book.getAttribute('class'))
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//Getting href if any
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console.log(book.getAttribute('href'))
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//Setting Attribute
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console.log(book.setAttribute('class', 'name-2'))
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console.log(book)
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//Checking if a Node has a particular Attribute.
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console.log(book.hasAttribute('class'))
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//Removing attribute
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console.log(book.removeAttribute('class'))
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console.log(book)
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‎DOM Course/Lesson-14 Attributes/index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="style.css">
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<title>DOM Introduction</title>
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</head>
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<body>
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<div id="wrapper">
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<header>
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<div id="page-banner">
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<h1 class="title">Books</h1>
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<form id="search-books">
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<input type="text" placeholder="Search books..." />
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</form>
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</div>
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</header>
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<div id="book-list">
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<h2 class="title">Books for Reading</h2>
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<ul>
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<li>
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<span class="name">Book 1</span>
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<span class="delete">delete</span>
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</li>
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<li>
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<span class="name">Book 2</span>
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<span class="delete">delete</span>
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</li>
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<li>
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<span class="name">Book 3</span>
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<span class="delete">delete</span>
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</li>
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<li>
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<span class="name">Book 4</span>
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<span class="delete">delete</span>
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</li>
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</ul>
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</div>
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<form id="add-book">
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<input type="text" placeholder="Add a book..." />
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<button>Add</button>
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</form>
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</div>
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<script src="app.js"></script>
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</body>
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</html>

‎DOM Course/Lesson-14 Attributes/style.css

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body {
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font-family: Tahoma;
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color: #444;
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letter-spacing: 1px;
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}
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h1,
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h2 {
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font-weight: normal;
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}
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#wrapper {
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width: 90%;
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max-width: 960px;
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margin: 20px auto;
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border-radius: 6px;
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box-shadow: 0px 1px 6px rgba(0, 0, 0, 0.2);
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box-sizing: border-box;
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padding: 0 0 20px;
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overflow: hidden;
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border: 1px solid lightgray;
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}
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#page-banner {
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background: #eee;
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padding: 10px 0;
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}
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#page-banner h1,
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#page-banner p {
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width: 100%;
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text-align: center;
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margin: 10px 0;
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}
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#page-banner input {
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width: 90%;
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max-width: 300px;
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margin: 20px auto;
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display: block;
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padding: 8px;
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border: 1px solid #ddd;
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border-radius: 4px;
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font-size: 16px;
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color: #444;
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}
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#book-list,
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#add-book,
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#tabbed-content {
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margin: 30px;
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}
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#book-list ul,
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#tabbed-content ul {
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list-style-type: none;
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padding: 0;
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}
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#book-list li {
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padding: 20px;
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border-left: 5px solid #ddd;
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margin: 20px 10px;
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}
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#book-list li:hover {
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border-color: #9361bf;
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}
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.delete {
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float: right;
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background: #9361bf;
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padding: 6px;
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border-radius: 4px;
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cursor: pointer;
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color: white;
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}
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.delete:hover {
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background: #333;
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}
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#add-book {
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width: 400px;
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margin: 0 auto;
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}
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#add-book input {
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display: block;
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margin: 20px 0;
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padding: 10px;
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border: 1px solid #ccc;
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font-size: 16px;
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border-radius: 4px 0 0 4px;
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box-sizing: border-box;
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width: 300px;
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float: left;
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}
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#add-book button {
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border: 1px solid #9361bf;
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background: #9361bf;
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padding: 10px 20px;
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font-size: 16px;
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display: inline-block;
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margin: 0;
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border-radius: 0 4px 4px 0;
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cursor: pointer;
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width: 100px;
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float: left;
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margin: 20px 0;
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border-left: 0;
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color: white;
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}
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#add-book:after {
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content: "";
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display: block;
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clear: both;
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}
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#tabbed-content li {
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display: inline-block;
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padding: 10px 14px;
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background: #ddd;
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border-radius: 4px;
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cursor: pointer;
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margin-right: 10px;
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}
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#tabbed-content .tab {
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display: none;
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border: 1px solid #ddd;
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padding: 0 10px;
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border-radius: 4px;
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}
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#tabbed-content .tab.active {
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display: block;
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}
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