The modal shifts the body right at the entrance and returns the body to its original position in the output.
In T3_blank with bootstrap2, i changed the bootstrap.less file ( templates/t3_blank/less) in line
// Components: Popoversnew
@import "../../../plugins/system/t3/base/bootstrap/less/modals.less"; old <------- changed by-----> new @import "../../../plugins/system/t3/base-bs3/bootstrap/less/modals.less";
and changed name de bootstrap.less file by bootstrap3.less. I also created a theme for me with all the files. Bootstrap 2 css, but I changed the codes from the modal bootstrap2 by boostrap 3 in my theme.( Not change others)
In the previous version t3_blank (with bootstrap 2) that I adapted with the new modal( bootstrap 3) is working correctly, but the new version T3_bs3_blank happens this "problem" on the screen when the modal goes. I'm trying to find a solution. If the modal is located in a position within spolight-1a does not happen this problem, but if you are home-1a or below any other, the problem happens. Only works perfectly if you are located in the first block.
<head>
<!-- AddThis Smart Layers BEGIN -->
<!-- Go to http://www.addthis.com/get/smart-layers to customize -->
<script type="text/javascript" src="//http://s7.addthis.com/js/300/addthis_widget.js#pubid=joomlart"></script>
<script type="text/javascript">
addthis.layers({
'theme' : 'transparent',
'share' : {
'position' : 'left',
'services' : 'facebook,twitter,google_plusone_share,pinterest_share,more'
}
});
</script>
<!-- AddThis Smart Layers END -->
<jdoc:include type="head" />
<? php $ this-> loadBlock ('head')>
</ head>
<body>
 Â
<? php $ this-> loadBlock ('spotlight-1a')>
 Â
  <? php $ this-> loadBlock (home-1a ')>
 Â
  <? php $ this-> loadBlock ('spotlight-2a')>
 Â
  <? php $ this-> loadBlock (home-2a ')>
 Â
  <? php $ this-> loadBlock ('spotlight-3a')>
 Â
  <? php $ this-> loadBlock ('spotlight-4a')>
  <? php $ this-> loadBlock ('navhelper-p')>
  <? php $ this-> loadBlock ('footer-p')>
</ body>
</ html>
If you are not in a position within the first block, the problem appears.
How to fix this?
Thanks