how to write to keep the bottom (tabbar) at the bottom all the time?
looks like there is no layout container!
<template>
<div id="main">
<mt-header title="">
<router-link to="/" slot="left"><mt-button icon="back"></mt-button></router-link>
</mt-header>
<mt-cell title="" is-link v-for="n in 20">
<span style="color: green"></span>
</mt-cell>
<mt-tabbar v-model="selected">
<mt-tab-item id="index"><img slot="icon" src="../../assets/img/100.png"></mt-tab-item>
<mt-tab-item id="sign"><img slot="icon" src="../../assets/img/100.png"></mt-tab-item>
<mt-tab-item id="content"><img slot="icon" src="../../assets/img/100.png"></mt-tab-item>
<mt-tab-item id="user"><img slot="icon" src="../../assets/img/100.png"></mt-tab-item>
</mt-tabbar>
</div>
</template>