Here is how to add those fancy shapes from the demo.

Doing this is fairly simple, but it does require some coding. Here is what you need to do:
Step 1. Wrap your petition with a div
You will need to add a wrapper to the petition shortcode so it looks something like this:
<div class="shape-wrapper">[petitioner-form id="{YOUR_FORM_ID_HERE}"]</div>
Step 2. Add custom CSS
Go to Petitioner / Settings and find the Custom CSS section. When you do, add the following CSS:
.shape-wrapper {
position: relative;
}
.shape-wrapper:before, .shape-wrapper:after{
content: "";
position: absolute;
display: block;
top: 0;
left: 0;
width: calc(100% + 16px);
height: calc(100% + 16px);
border-radius: 8px; /* play around with this value */
z-index: 0;
}
.shape-wrapper:before {
background: red; /* use your color here */
transform: rotate(2deg);
}
.shape-wrapper:after {
background: blue; /* use your color here */
transform: rotate(-2deg);
}
.shape-wrapper .petitioner {
position:relative;
z-index: 2;
}
Step 3. Enjoy 🙂
That’s it! You now have your own version of the shapes!