You can use below sample code to create content of different width.
Width: 30%
<div class="width30">
your content here..
</div>Width: 40%
<div class="width40">
your content here..
</div>Width: 50%
<div class="width50">
your content here..
</div>Width: 60%
<div class="width60">
your content here..
</div>Width: 70%
<div class="width70">
your content here..
</div>Width: 80%
<div class="width80">
your content here..
</div>Width: 90%
<div class="width90">
your content here..
</div>