liberama/client/components/CardIndex/CardIndex.vue

<template>
    <el-container direction="vertical">
        <el-header height="50px">Header</el-header>
        <router-view></router-view>
    </el-container>
</template>

<script>
//-----------------------------------------------------------------------------
import Vue from 'vue';
import Component from 'vue-class-component';

export default @Component({
})
class CardIndex extends Vue {
    created() {
    }

}
//-----------------------------------------------------------------------------
</script>

<style scoped>
.el-header {
    border: 1px solid black;
}
</style>