To structure the HTML elements for a 3-column layout, you can use a combination of container elements and individual column elements. Here's an example:
<div class="container">
<div class="column">
<!-- Content for column 1 -->
</div>
<div class="column">
<!-- Content for column 2 -->
</div>
<div class="column">
<!-- Content for column 3 -->
</div>
</div>
In this example, the container <div>
with the class "container" holds three separate <div>
elements with the class "column". Each column represents a specific section or content within the 3-column layout.