If you have content that will take a long time to load, you should give the user feedback. In this case we have an animated preloader.
<div class="preloader-wrapper big active">
<div class="spinner-layer spinner-blue">
<div class="circle-clipper left">
<div class="circle"></div>
</div><div class="gap-patch">
<div class="circle"></div>
</div><div class="circle-clipper right">
<div class="circle"></div>
</div>
</div>
<div class="spinner-layer spinner-red">
<div class="circle-clipper left">
<div class="circle"></div>
</div><div class="gap-patch">
<div class="circle"></div>
</div><div class="circle-clipper right">
<div class="circle"></div>
</div>
</div>
<div class="spinner-layer spinner-yellow">
<div class="circle-clipper left">
<div class="circle"></div>
</div><div class="gap-patch">
<div class="circle"></div>
</div><div class="circle-clipper right">
<div class="circle"></div>
</div>
</div>
<div class="spinner-layer spinner-green">
<div class="circle-clipper left">
<div class="circle"></div>
</div><div class="gap-patch">
<div class="circle"></div>
</div><div class="circle-clipper right">
<div class="circle"></div>
</div>
</div>
</div>