<h1>제목1</h1>
    <h2>제목2</h2>
    <table>
        <caption>기본 필터 선택자</caption>
        <colgroup>
            <col>
            <col>
            <col>
        </colgroup>
        <tbody>
            <tr>
                <td>1</td>
                <td>2</td>
                <td>3</td>
            </tr>
            <tr>
                <td>4</td>
                <td>5</td>
                <td>6</td>
            </tr>
            <tr>
                <td>7</td>
                <td>8</td>
                <td>9</td>
            </tr>
            <tr>
                <td>10</td>
                <td>11</td>
                <td>12</td>
            </tr>
        </tbody>
    </table>
    <ul>
        <li class="bg">내용1</li>
        <li class="bg">내용2</li>
        <li class="bg">내용3</li>
        <li>내용4</li>
    </ul>
 table {
            border-collapse: collapse;
            width: 100%;
        }
        td {
            border: 1px solid #333;
        }
        li {
            color: white;
           margin: 5px;
        }
 $(document).ready(function(){
           $("tr:even").css("background","red")
           $("tr:odd").css("background","orange")
           $("td:first").css("background","yellow")
           $("td:last").css("background","green")
           $(":header").css("background","blue")
           $("li:eq(0)").css("background","navy")
           $("li:gt(0)").css("background","purple")
           $("li:lt(3)").css("border", "4px solid gray")
           $(":root").css("background", "lightgray")
           (function upDown(){
            $("h2").slideToggle(2000,upDown);
           })();
           $("animated").css("border","4px soild darkred")
         })

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/jquery.min.js