A sample PDF template showing off the float support

example-float.php

<?php

/**
 * Template Name: Example Float
 * Version: 0.1
 * Description: A sample PDF template showing off the float support
 * Author: Gravity PDF
 * Group: Example
 * License: GPLv2
 * Required PDF Version: 4.0
 */

/* Prevent direct access to the template (always good to include this) */
if ( ! class_exists( 'GFForms' ) ) {
    return;
}

?>

<style>
    .row {
        clear: both;
        margin-bottom: 5mm;
    }

    .col {
        float: left;
    }

    .col-1-2 {
        width: 49%;
        padding-right: 1%;
    }

    .col-1-3 {
        width: 33%;
        padding-right: 0.3%;
    }

    .inner {
        padding: 10px;
        border: 1px solid black;
    }
</style>

<div class="row">
    <div class="col col-1-2">
        This is my left column
    </div>

    <div class="col col-1-2">
        This is my right column
    </div>
</div>

<div class="row">
    <div class="col col-1-2">
        <div class="inner" height="40mm">
            This is my left column
        </div>
    </div>

    <div class="col col-1-2">
        <div class="inner" height="40mm">
            This is my right column
        </div>
    </div>
</div>

<div class="row">
    <div class="col col-1-3">
        <div class="inner" height="40mm">
            This is my left column
        </div>
    </div>

    <div class="col col-1-3">
        <div class="inner" height="40mm">
            This is my middle column
        </div>
    </div>

    <div class="col col-1-3">
        <div class="inner" height="40mm">
            This is my right column
        </div>
    </div>
</div>