如何将class =“ active”放入vue.js中的第一个元素以进行循环

我正在尝试学习vue.js。我要添加元素列表，我只想添加class="active"到for循环中的第一个元素。以下是我的代码：

<div class="carousel-inner text-center " role="listbox">
    <div class="item" v-for="sliderContent in sliderContents">
        <h1>{{ sliderContent.title }}</h1>
        <p v-html="sliderContent.paragraph"></p>
    </div>
</div>

因此，第一个元素应如下所示：

<div class="item active">
    <h1>WELCOME TO CANVAS</h1>
    <p>Create just what you need for your Perfect Website. Choose from a wide<br>range of Elements & simple put them on your own Canvas</p>
</div>

我能够获取数据，因此一切工作都很好。

以下是我的脚本代码：

<script>
export default{
    data() {
        return {
            sliderContents: [
                {
                    title: "WELCOME TO CANVAS",
                    paragraph: "Create just what you need for your Perfect Website. Choose from a wide<br>range of Elements & simple put them on your own Canvas"
                },
                {
                    title: "WELCOME TO CANVAS",
                    paragraph: "Create just what you need for your Perfect Website. Choose from a wide<br>range of Elements & simple put them on your own Canvas"
                },
                {
                    title: "WELCOME TO CANVAS",
                    paragraph: "Create just what you need for your Perfect Website. Choose from a wide<br>range of Elements & simple put them on your own Canvas"
                },
                {
                    title: "WELCOME TO CANVAS",
                    paragraph: "Create just what you need for your Perfect Website. Choose from a wide<br>range of Elements & simple put them on your own Canvas"
                }
            ]
        }
    }
}

帮帮我。