# JavaScript How can I create overlapping trapezoids or successive rhombus from array?

I have been working on this for a while and would love some help. I have two sets of divs of different lengths offset by varying distances which are being created from an array.

`Fiddle 1:` JSFiddle1

Between these sets of divs I would like to dynamically create a connecting shape (trapezoid/rhombus like shape). I was able to create the first one using CSS and borders.

`Fiddle 2:` JSFiddle2

When I try to add successive divs I run into a problem.

`Fiddle 3:` JSFiddle3

The goal would look something like this (but created dynamically from the array rather than my Photoshopping here):

Any ideas?

I am not concerned about crossbrowser (I am only using FF), though such might be nice if it is easy.

I know you wanted an HTML and CSS based solution, but here is a JavaScript solution for generating a svg based solution:

``````var correlationPoints = [
[0, 10, 50, 200, 600],
[0, 200, 300, 400, 600]
],
correlationHeight = 16,
svg = document.getElementsByTagName('g')[0],
patches = correlationPoints[0].length;

for (var i = 0; i < correlationPoints[0].length - 1; i++) {
var newElement = document.createElementNS("http://www.w3.org/2000/svg", 'path'),
color = Math.round(((i + 1) / patches) * 255),
path = [],
c = 0;

newElement.setAttribute('fill', 'RGB(' + color + ',' + color + ',' + color + ')');
path[c++] = 'M'; // start move
path[c++] = correlationPoints[0][i]; // start at top left corner x
path[c++] = '0'; //top left y

path[c++] = 'L'; //top right
path[c++] = correlationPoints[0][i + 1];
path[c++] = '0';

path[c++] = 'L'; // top of angle right
path[c++] = correlationPoints[0][i + 1];
path[c++] = '20';

path[c++] = 'L'; // bottom of angle right
path[c++] = correlationPoints[1][i + 1];
path[c++] = '40';

path[c++] = 'L'; // bottom right
path[c++] = correlationPoints[1][i + 1];
path[c++] = '60';

path[c++] = 'L'; // bottom left
path[c++] = correlationPoints[1][i];
path[c++] = '60';

path[c++] = 'L'; // bottom of angle left
path[c++] = correlationPoints[1][i];
path[c++] = '40';

path[c++] = 'L'; // top of angle left
path[c++] = correlationPoints[0][i];
path[c++] = '20';

newElement.setAttribute("d", path.join(' '));
svg.appendChild(newElement);
}``````
``````body {
margin: 20px;
background-color: lightblue;
}

path:hover {
fill: red;
}``````
``````<h1>Title</h1>
<p>Regular text.</p>
<svg xmlns="http://www.w3.org/2000/svg" width="600px" height="60px">
<desc></desc>
<g class="correlations" alignment-baseline="baseline">
</g>
</svg>
<p>Regular text.</p>``````

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