0👍
Try/modify this approach:
<template>
<div>
<v-container fluid>
<v-layout row wrap>
<v-flex lg9>
<v-flex lg4>
<Communication />
</v-flex>
<v-flex lg8>
<ActiveCall />
</v-flex>
<v-flex lg12>
<History />
</v-flex>
</v-flex>
<v-flex lg3>
<Contacts />
</v-flex>
</v-layout>
</v-container>
</div>
</template>;
Source:stackexchange.com