Building a website with Laravel5 and Bootstrap4.
I'm getting a FOUC with a brief width of my page at 1/5 of width before expanding to real width.
The reason seems to be attached to how i use container-fluid. I am using 'container-fluid' as i want to have a vertical left sidebar with content at the left of main page. On a simple page, code is as per below :
<div class="container-fluid px-0">
<div class="d-lg-flex flex-lg-row justify-content-center ">
@yield('left_side')
<div class="col-12 col-lg-10 col-xl-10 custom-width">
<div class="container">
<div class="row justify-content-center" >
<div class="col-12">
<div class="card page_card" >
<div class="mx-auto" style="min-height: 70vh">
<p> example..</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
When removing my side-bar and using 'container' instead of container-fluid, the display is at correct width as soon as the page loads.
Correction
It is not about a width change. It seems briefly this is my side column which appears blank in the center with main page aligned vertically, before having the 2 pieces being put aligned horizontally
Addition1 - GIF of my FOUC-error
Here is an example of the FOUC:
It seems the FOUC is caused by my 'Google Ad'-div (in Yellow) i have inserted in my topbar containing my navbar. Some website have their ads appearing above the navbar so this can be done. Any clues?
<!-- for navigation and title on screen < lg -->
<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark navbar-fixed-top d-lg-none">
<div class="container">
<div class="row" >
<div class="col-2">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsMain" aria-controls="navbarsMain" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarsMain">
<ul class="navbar-nav mr-auto" style="width: 200px">
<li class="{{Request::is('/') ? 'active' : ''}} nav-item">
<a class="nav-link">AAA </a>
</li>
<li class="{{Request::is('sentiment') ? 'active' : ''}} nav-item">
<a class="nav-link" >BBB</a>
</li>
<li class="{{Request::is('exchanges') ? 'active' : ''}} nav-item">
<a class="nav-link" >CCC</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</nav>
<div class="top-bar d-lg-none">
<hr class="divider-under-title mt-0 d-lg-none" />
<div class="container">
<div class="row justify-content-center" >
<div class="col-12">
<div class="top-ad d-none d-sm-block">
<script async defer src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- top-ad2 when removed, FOUC disappears -->
<ins class="adsbygoogle"
style="display:block"
data-ad-client="ca-pub-66666"
data-ad-slot="44444"
data-ad-format="auto"
data-full-width-responsive="true"></ins>
<script async defer>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
</div>
</div>
<div class="col-12">
<!--<link href="https://afeld.github.io/emoji-css/emoji.css" rel="stylesheet">-->
<div class="ad_block_message_id">
Oh nasty adblocker. <i class="em em---1"></i>
</div>
</div>
</div>
</div>
</div>
<!-- for market segment on screen >= lg -->
<div class="top-large-bar d-none d-lg-block">
<!-- for Title on screen >= lg -->
<div class="row">
<div class="col-lg-12">
<h1 id="title" class="d-none d-lg-block">
<a class="deco-none" href="/">TEST</a><sup><code class="code_sup_text"></code></sup>
</h1>
</div>
</div>
<div class="container">
<div class="row justify-content-center" >
<div class="col-12">
<div class="top-ad d-none d-sm-block">
<script async defer src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- top-ad2 when removed, FOUC disappears -->
<ins class="adsbygoogle"
style="display:block"
data-ad-client="ca-pub-666666"
data-ad-slot="444444"
data-ad-format="auto"
data-full-width-responsive="true"></ins>
<script async defer>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
</div>
</div>
<div class="col-12">
<!--<link href="https://afeld.github.io/emoji-css/emoji.css" rel="stylesheet">-->
<div class="ad_block_message_id">
Oh nasty adblocker. <i class="em em---1"></i>
</div>
</div>
</div>
</div>
</div>
<!-- for navbar on screen >= lg -->
<nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-dark navbar-fixed-top d-none d-lg-block mb-2">
<div class="container">
<a class="navbar-brand" href="/">{{ config('app.name') }}</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsMain" aria-controls="navbarsMain" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarsMain">
<ul class="navbar-nav mr-auto">
<li class="{{Request::is('/') ? 'active' : ''}} nav-item">
<a class="nav-link" >AAAA <</a>
</li>
<li class="{{Request::is('sentiment') ? 'active' : ''}} nav-item">
<a class="nav-link" >BBBBB</a>
</li>
<li class="{{Request::is('exchanges') ? 'active' : ''}} nav-item">
<a class="nav-link" >CCCCC</a>
</li>
</ul>
</div>
</div>
</nav>
