How to customize active tab style in EJ2 JavaScript Tab

4 Sep 20269 minutes to read

You can customize the Tab style by overriding its header and active tab CSS classes. To do this, follow these steps:

  1. Define an HTML string to add animation and customize the Tab header.
  2. Pass this HTML string to the text property.
  3. Override the styles using custom CSS classes added to the Tab elements.

You can add a custom class to the Tab component using the cssClass property, which is used to customize the Tab component along with the respective CSS selectors.

//Initialize Tab component
var tabObj = new ej.navigations.Tab({
    cssClass: "e-tab-custom-class",
    items: [
        {
            header: { 'text': '<div><div class="e-image e-andrew"></div><div class="e-title fade-in">Andrew</div></div>' },
            content: 'Andrew received his BTS commercial in 1974 and a Ph.D. in international marketing from the University of Dallas in 1981.He is fluent in French and Italian and reads German.He joined the company as a sales representative, was promoted to sales manager in January 1992 and to vice president of sales in March 1993.Andrew is a member of the Sales Management Roundtable, the Seattle Chamber of Commerce, and the Pacific Rim Importers Association.'
        },
        {
            header: { 'text': '<div><div class="e-image e-margaret"></div><div class="e-title fade-in">Margaret</div></div>'  },
            content: 'Margaret holds a BA in English literature from Concordia College (1958) and an MA from the American Institute of Culinary Arts (1966).She was assigned to the London office temporarily from July through November 1992.'
        },
        {
            header: { 'text': '<div><div class="e-image e-janet"></div><div class="e-title fade-in">Janet</div></div>'  },
            content: 'Janet has a BS degree in chemistry from Boston College (1984).She has also completed a certificate program in food retailing management.Janet was hired as a sales associate in 1991 and promoted to sales representative in February 1992.'
        }
    ]
});

//Render initialized Tab component
tabObj.appendTo('#element');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Tab</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 Tab">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.syncfusion.com/ej2/34.2.2/bootstrap5.3.css" rel="stylesheet">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/34.2.2/dist/ej2.min.js" type="text/javascript"></script>
    <style>
        .e-content .e-item {
            font-size: 12px;
            margin: 10px;
            text-align: justify;
        }

        .container {
            min-width: 350px;
            max-width: 500px;
            margin: 0 auto;
        }

        .e-image {
            background-size: 33px;
            width: 33px;
            height: 30px;
            margin: 0 auto;
        }

        .e-tab-text .e-andrew {
            background-image: url(https://ej2.syncfusion.com/javascript/demos/src/tab/images/8.png);
        }

        .e-tab-text .e-margaret {
            background-image: url(https://ej2.syncfusion.com/javascript/demos/src/tab/images/1.png);
        }

        .e-tab-text .e-janet {
            background-image: url(https://ej2.syncfusion.com/javascript/demos/src/tab/images/2.png);
        }

        .e-tab .e-toolbar-item .e-title {
            display: none;
        }

        .e-toolbar .e-toolbar-items .e-toolbar-item:not(.e-separator),
        .e-toolbar .e-toolbar-items .e-toolbar-item .e-tab-wrap {
            width: 105px;
            height: 50px;
        }

        .e-tab .e-tab-header .e-toolbar-items .e-active .e-tab-wrap {
            background-color: #08c;
        }

        .e-tab .e-tab-header {
            background-color: #e6e6e6;
        }

        .e-tab .e-tab-header .e-toolbar-item:not(.e-active) .e-tab-wrap:hover {
            background-color: #f2f2f2;
            color: #000;
        }

        .e-tab .e-toolbar .e-toolbar-items .e-toolbar-item .e-text-wrap {
            height: 50px;
        }

        .e-tab .e-toolbar-items .e-active .e-image {
            display: none;
        }

        .e-tab .e-toolbar-items .e-active .e-title {
            display: block;
            color: white;
        }

        .e-tab .e-toolbar-item .e-text-wrap,
        .e-tab .e-toolbar-item .e-tab-text {
            width: inherit;
            text-align: center;
        }

        .fade-in {
            opacity: 1;
            animation-name: fadeInOpacity;
            animation-iteration-count: 1;
            animation-timing-function: ease-in;
            animation-duration: 0.5s;
        }

        @keyframes fadeInOpacity {
            0% {
                opacity: 0;
            }

            100% {
                opacity: 1;
            }
        }
    </style>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
        <br><br>
        <div id="result"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>