dat.gui/elements/gui-row.html

<link rel="import" href="../components/polymer/polymer.html">

<polymer-element 
    name="gui-row" 
    attributes="name"
    constructor="GUIRow">

<template>

<link rel="stylesheet" href="gui-row.css">

<div id="row" layout horizontal center>
    <div id="name">{{ name }}</div>
    <div id="controller" flex>
        <content></content>
    </div>
</div>

</template>

</div>

<script src="gui-row.js"></script>

</polymer-element>