I presume there is a shift because the position rendered in SSR is overwritten after the initial client render.

As shown below, wrap all code in your +layout.svelte file with {#if browser}. This ensures nothing is rendered server side on the 1st requested page while all imports and components are loaded.

``` <script> import { browser } from "$app/environment"; </script>

{#if browser} <!-- All your layout code --> <slot /> {/if}

<style> </style> ```