VuetifyJS toolbar overlays content as soon as fixed prop gets added
One solution is adding app to v-toolbar and wrap v-layout inside v-content
<v-toolbar app color="primary" dark fixed extended >...</v-toolbar><v-content> <v-layout> </v-layout></v-content>Demo https://codepen.io/ittus/pen/mGdbeN?editors=1010
References: Vuetify application layout tutorial
Couldn't get exactly your question, is this what you wanted to achieve:
new Vue({ el: '#app', mounted(){ var fixedElement = document.getElementsByClassName('v-toolbar--fixed')[0]; var layout = document.getElementsByClassName('layout')[0]; layout.style = "padding-top: "+ fixedElement.offsetHeight + 'px'; }});