/* relevant for the tutorial - start */
  #gallery {
	position: relative;
	float: left;
	width: 100%;
	padding-left: 60px;
}
#gallery .botones {
	width: 750px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: 25px;
	margin-left: auto;
}
    #pictures {
	position: relative;
	height: 650px;

}
    #pictures img {
	position: absolute;
	top: 0;
	left: 0;
	padding-left: 125px;
}
    
    #prev, #next {
	display: block;
	width: 350px;
	text-align: center;
}
  /* relevant for the tutorial - end */
  
#gallery .botones {
	float: left;
}