.section-videos{
  overflow:hidden;
}
.col-video{
  padding:0px !important;
  
}
.contenedor{
  display: block; 
  margin: 20px auto;
  margin: 0px; 
  width: 100%; 
  /*max-width: 600px; */
  /*border:solid 1px red;*/
  padding-bottom:1px;
  padding-right:1px;
}
.reproductor { 
  display: block; 
  width: 100%; 
  height:0px; 
  padding-bottom: 56.25%; 
  overflow: hidden; 
  position: relative; 
  cursor: hand; 
  cursor: pointer; 
}
img.imagen-previa { 
   display: block; 
   left: 0; 
   bottom: 0;
   margin: auto; 
   max-width: 100%; 
   width: 100%; 
   position: absolute; 
   right: 0; 
   top: 0; 
   height: auto 
}
div.youtube-play { 
   height: 64px; 
   width: 64px; 
   left: 50%; 
   top: 50%; 
   margin-left: -36px; 
   margin-top: -36px;
   opacity:0.7;
   position: absolute; 
   background:   url("https://cdn2.iconfinder.com/data/icons/social-icons-color/512/youtube-64.png") no-repeat; 
}
div.youtube-play:hover{
   opacity:1; 
}
#youtube-iframe { 
   width: 100%; 
   height: 100%; 
   position: absolute; 
   top: 0; 
   left: 0; 
}