SOURCE

new Vue({
    el: '#app'
})

<div id="app">
    <div class="box">
        <p v-for="index in 30">填充内容，横向填充内容，横向填充内容</p>
    </div>
</div>

/* common.css */
::-webkit-scrollbar{
    width: 6px;
    height: 6px;
    background-color: #fafafa;
}

::-webkit-scrollbar-thumb {
    border-radius: 6px;
    background: #CCC;
}
::-webkit-scrollbar-thumb:hover {
    background: #999;
}

#app {
    padding: 20px;
}
.box {
    width: 200px;
    height: 200px;
    border: 1px solid #ccc;
    overflow: auto;
}
.box p {
    white-space: nowrap;
}