Merge branch 'dospuntocero-master' into 2.3.0-wip

diff --cc less/mixins.less
Simple merge

diff --cc less/tests/css-tests.html
index cdb6c7bcaa641b19e132eb896bab87ebd6ffd5a9,98496b7620f748b3b13b66f193e763333878d0fa..c69688c76360c63805bf5d12e2bb78646ffb4638
--- 1/less/tests/css-tests.html
--- 2/less/tests/css-tests.html
+++ b/less/tests/css-tests.html
@@@ -1291,61 -1291,13 +1291,64 @@@
  <h4>Striped</h4>
  <div class="gradient-striped"></div>
  
+ <h4>Horizontal three colors</h4>
+ <div class="gradient-horizontal-three"></div>
+ 
  
  
 +<div class="page-header">
 +  <h1>Alerts</h1>
 +</div>
 +
 +<h4>Alert default</h4>
 +<div class="alert">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <strong>Alert!</strong> Best check yourself, you're not looking too good.
 +</div>
 +<div class="alert alert-block">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <p><strong>Alert!</strong> Best check yourself, you're not looking too good.</p>
 +</div>
  
 +<h4>Success</h4>
 +<div class="alert alert-success">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <strong>Success!</strong> Best check yourself, you're not looking too good.
 +</div>
 +<div class="alert alert-block alert-success">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <p><strong>Success!</strong> Best check yourself, you're not looking too good.</p>
 +</div>
  
 +<h4>Info</h4>
 +<div class="alert alert-info">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <strong>Info!</strong> Best check yourself, you're not looking too good.
 +</div>
 +<div class="alert alert-block alert-info">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <p><strong>Info!</strong> Best check yourself, you're not looking too good.</p>
 +</div>
 +
 +<h4>Warning</h4>
 +<div class="alert ">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <strong>Warning!</strong> Best check yourself, you're not looking too good.
 +</div>
 +<div class="alert alert-block alert-warning">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <p><strong>Warning!</strong> Best check yourself, you're not looking too good.</p>
 +</div>
 +
 +<h4>Error</h4>
 +<div class="alert alert-error">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <strong>Error!</strong> Best check yourself, you're not looking too good.
 +</div>
 +<div class="alert alert-block alert-error">
 +  <button type="button" class="close" data-dismiss="alert">&times;</button>
 +  <p><strong>Error!</strong> Best check yourself, you're not looking too good.</p>
 +</div>
  
  
      </div><!-- /container -->