bootstrap columns overlapping - html

Question

I have an issue with bootstrap's grid layout. My columns are overlapping one another when I resize the screen to a smaller layout.
I'm not sure what the issue is.
Here is a picture of what is going on:
Here is my code
<div class='container-fluid'>
<div class="row"> <!-- 1 -->
<div class="col-sm-5 col-md-4">
<h1>JOHN SMITH</h1>
</div>
</div>
<div class='row'> <!-- 2 -->
<div class="col-sm-5 col-md-4">
<h2>VULCAN FLATBED</h2>
</div>
</div>
<div class="row"> <!-- 3 -->
<div class="col-sm-4 col-md-4 col-lg-4" style="background-color:yellow;">
<div class='row'>
<img src="vulcan.jpg" alt="vehicle image" width='391'/>
</div>
<div class='row'>
<button type='submit'>
<img src="book_now_button#2x.png" alt="book now">
</button>
</div>
</div>
<div class="col-sm-8 col-md-8 col-lg-8" style="background-color:pink;"> <!-- RIGHT SIDE -->
<div class='row'>
<h3>CAN HELP WITH</h3>
<p>LIFTING & YARD WORK</p>
</div>
<div class='row'>
<h3>AVAILABLE</h3>
<p>ALL WEEKENDS</p>
</div>
<div class='row'>
<h3>NOTE</h3>
<p>HI, MY NAME IS JOHN AND I HAVE A GREAT TRUCK FOR TRANSPORTING CARS,
WORK MATTERIAL, OR HEAVY OBJECTS. I HAVE A FULL TIME JOB SO I CAN
ONLY HELP YOU ON THE WEEKENDS. I LOVE WORKING WITH MY HANDS SO IF YOU
SOME HELP WITH LIFTING OR YARDWORK I AM YOUR GUY. BOOK NOW TO CONTACT
ME AND LET ME HELP YOU OUT.
</p>
</div>
</div>
</div> <!-- end 3 -->
<hr>
</div> <!-- end wrap -->

Answer 1

According to Bootstrap Docs, for each .row you need to have a .col-*-* as direct child but you don't have it in a few of them. Which cause the overflow.
Plus don't use the html tag width, it is deprecated. use class="img-responsive" from bootstrap to achieve max-width:100%
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class='container-fluid'>
<div class="row">
<!-- 1 -->
<div class="col-sm-5 col-md-4">
<h1>JOHN SMITH</h1>
</div>
</div>
<div class='row'>
<!-- 2 -->
<div class="col-sm-5 col-md-4">
<h2>VULCAN FLATBED</h2>
</div>
</div>
<div class="row">
<!-- 3 -->
<div class="col-sm-4 col-md-4 col-lg-4" style="background-color:yellow;">
<div class='row'>
<div class="col-xs-12">
<img class="img-responsive" src="//lorempixel.com/500/200" alt="vehicle image" />
</div>
</div>
<div class='row'>
<div class="col-xs-12">
<button type='submit'>
<img src="book_now_button#2x.png" alt="book now">
</button>
</div>
</div>
</div>
<div class="col-sm-8 col-md-8 col-lg-8" style="background-color:pink;">
<!-- RIGHT SIDE -->
<div class='row'>
<div class="col-xs-12">
<h3>CAN HELP WITH</h3>
<p>LIFTING & YARD WORK</p>
</div>
</div>
<div class='row'>
<div class="col-xs-12">
<h3>AVAILABLE</h3>
<p>ALL WEEKENDS</p>
</div>
</div>
<div class='row'>
<div class="col-xs-12">
<h3>NOTE</h3>
<p>HI, MY NAME IS JOHN AND I HAVE A GREAT TRUCK FOR TRANSPORTING CARS, WORK MATTERIAL, OR HEAVY OBJECTS. I HAVE A FULL TIME JOB SO I CAN ONLY HELP YOU ON THE WEEKENDS. I LOVE WORKING WITH MY HANDS SO IF YOU SOME HELP WITH LIFTING OR YARDWORK I
AM YOUR GUY. BOOK NOW TO CONTACT ME AND LET ME HELP YOU OUT.
</p>
</div>
</div>
</div>

Answer 2

I believe your problem is that you have many elements with the "row" class that don't have any columns in them. The hierarchy goes container > row > col. Without a column, there is no need for anything to be declared a row, and it affects the layout in unusual ways without them.
Another problem is your image. Remove the "width" attribute, and add the following class attribute: class="img-responsive". See the Images section of the bootstrap docs for details.

Answer 3

In my case, I was using box-sizing: content-box; for all my elements in css. That is why padding was creating problems with overall computed width of the elements. So, I changed it to box-sizing: border-box; from box-sizing: content-box;
Ref:
https://getbootstrap.com/docs/4.0/getting-started/introduction/#box-sizing