Description Billboard and skys served by PG.
Sizes Creatives uploaded by buyer 
Billboard: 1.200×250; right sky: 120×801; left sky: 120×802.
The recommended width for the billboard in abc.es, sevilla.abc.es and lavozdigital.es is 1200 pixels.
* We recommend that the creatives be uploaded by the publisher.
Creatives uploaded by publisher
Billboard: 1.200×250; large skys (both): 450×1000; small skys (both): 120×800.
The main content (logo, copys…) should not exceed more than 120×600 px and should be line up to the middle body to avoid hiding important content in small resolutions. Should not put information in the first 46px of the top.
Format gif, jpg, html, redirect (https)
Max weight 250 Kb (img y html). Initial load: 250kb. Secondary load: 500 kb.
Video: 1 Mb
Audio/Video Only for billboard.
The player should display the play, pause, stop and volume controls.
The player should start mute and should not be in an infinite loop, but you can add a replay button.
The player can start autoplay as long as the video / audio does not exceed 1Mb.
ClickTag In case of HTML the clickTag must be implemented in the following way:

1. Insert Smart library code in the HEAD.
<script src="//ns.sascdn.com/diff/templates/js/banner/sas-clicktag-3.1.js">

2. Declare the click variable
var clickTag = "http://www.theclickthroughurl.com";

3. Then encapsulate the click layer in the creative content.
<a href="javascript:window.open(window.clickTag, '_blank')">
Restrictions In case of HTML:
1. Only parts in native HTML will be accepted (It’s not allowed to use Google Web Designer / Adobe Edge Animated).
2. Trafficking HTML5 campaigns in SMART requires a .zip file that includes the HTML5 file and reference files.
3. For SMART to recognize this format the html file must always be named «index.html».
4. The upload of external resources (images, CSS and JS) will be through absolute URL. In an exceptional case of coming with relative url, maximum of 10 requests.
5. Consumption CPU should not exceed 30% on a core i5 computer.
6. The initial load, under normal network conditions (wifi or 4G), should not exceed 100 Kbs.
z-index value z-index =9