Element-ui滚动条el-scrollbar始终保持在底部

el-scrollbar是elementui隐藏的一个组件使用方法如下：

<el-scrollbar style="height: calc(100vh - 200px);" ref="myScrollbar"><p v-for="(message, index) in messages" :key="index"><span class="nick"> {{message.nick}} </span>:<br/>{{message.text}}</p></el-scrollbar>

this.$nextTick(() => {this.$refs['myScrollbar'].wrap.scrollTop = this.$refs['myScrollbar'].wrap.scrollHeight})

// 必要的//隐藏底部滚动条/deep/ .el-scrollbar__wrap {overflow: scroll;height: 100% !important;overflow-x: hidden !important;}