Default

A 1200 times 600 image 
<img src="/media/images/1200x600.svg" alt="A 1200 times 600 image">

with a max width of 600px

A 1200 times 600 image wrapped in a div with a max width of 600px 
<div style="max-width: 600px">
  <img src="/media/images/1200x600.svg" alt="A 1200 times 600 image wrapped in a div with a max width of 600px">
</div>

with a height of 250px

1200 times 600 image wrapped in a div with a height of 400px 
<div style="height: 250px">
  <img src="/media/images/1200x600.svg" alt="1200 times 600 image wrapped in a div with a height of 400px">
</div>

with a max width of 600px

A 1200 times 600 image wrapped in a div with a max width of 600px 
<div style="max-width: 600px">
  <img src="/media/images/1200x600.svg" alt="A 1200 times 600 image wrapped in a div with a max width of 600px">
</div>