Bootstrap control changes position height based on width of screen - html

Question

I have a bootstrap row containing a header tag and a link tag. They are aligned on the same row when the screen width is less than 768 pixels. When the container width is 768 or greater the link element shifts a few pixels higher.
Here is an example that demonstrates this behaviour: https://jsfiddle.net/bz3399x8/
<div class="row">
<div class="col-sm-12">
<a class="btn btn-primary" href="#" style="width: 80px; float: right;">
<i class="icon-plus">
Add
</i>
</a>
<h1>
Hello World
</h1>
</div>
</div>
Here are screenshots demonstrating this behaviour.
There are two issues:
what is causing this?
how to i fix this?

Answer 1

your syntax according to Bootstrap Docs is wrong,
it needs the .container to wrap .row
and
h1 and a button elements needs to be wrapped in Bootstrap columns.
So, you can use .col-sm-10 + .col-sm-2 in this case.
Added .col-xs for demo
.row {
/* demo*/
background:red
}
.btn {
margin-top:20px /* choose as it fit you better */
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<div class="container">
<div class="row">
<div class="col-xs-10 col-sm-10">
<h1>
Hello World
</h1>
</div>
<div class="col-xs-2 col-sm-2">
<a class="btn btn-primary" href="#">
<i class="icon-plus">
Add
</i>
</a>
</div>
</div>
</div>

Answer 2

While wrapping elements in different column will help answer your problem. If you are looking at wrapping both elements inside single column you need to specify elements to be inline. Problem is occurring since h1 element and a element even though in same row for bootstrap but are displayed as block and inline-block.
Add display: inline-block to h1 element with top padding to a element. This should answer it as well.
Try it with display: inline on h1 see the difference in behavior. inline element dont support vertical margins.
Fiddle: https://jsfiddle.net/dk_dragonknight/m8ey6mba/