Well, let me have a question. How to insert a responsive image in the upper corner of a section using bootstrap. Ex: this is the site that I am developing renpa.esy.es, but in the fourth section that has bikes packages, I want to place an image in the upper right corner of the background image.
HTML Code - SECTION
<section class="bg-silver" id="four">
<div class="container">
<div class="row">
<div class="col-lg-12 text-center">
</div>
</div>
<div class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a href="#portfolioModal1" class="portfolio-link" data-toggle="modal">
<div class="portfolio-hover">
</div>
</a>
<div class="portfolio-caption">
</div>
</div>
<div class="col-md-12 text-center">
<a href="#portfolioModal2" class="portfolio-link" data-toggle="modal">
<div class="portfolio-hover">
</div>
<img src="assets/a4.png" class="img-responsive" alt="">
</a>
<div class="portfolio-caption">
</div>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a href="#galleryModal" class="gallery-box" data-toggle="modal" data-src="./assets/1.png">
<img src="./assets/1.png" class="img-responsive" alt="Image 4">
<div class="gallery-box-caption">
<div class="gallery-box-content">
<div>
<i class="icon-lg ion-ios-search"></i>
</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a href="#galleryModal" class="gallery-box" data-toggle="modal" data-src="./assets/2.png">
<img src="./assets/2.png" class="img-responsive" alt="Image 4">
<div class="gallery-box-caption">
<div class="gallery-box-content">
<div>
<i class="icon-lg ion-ios-search"></i>
</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a href="#galleryModal" class="gallery-box" data-toggle="modal" data-src="./assets/3.png">
<img src="./assets/3.png" class="img-responsive" alt="Image 4">
<div class="gallery-box-caption">
<div class="gallery-box-content">
<div>
<i class="icon-lg ion-ios-search"></i>
</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a href="#portfolioModal6" class="portfolio-link" data-toggle="modal">
<div class="portfolio-hover">
</div>
</a>
<div class="portfolio-caption">
</div>
</div>
</div>
</section>
CSS CODE - BOOTSTRAP
.bg-silver {
position: relative;
min-height: auto;
text-align: center;
color: #fff;
width: 100%;
background-color: #c9c9c9;
background-image:url(../assets/moto.png);
background-position: center;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
height:auto !important;
}
.content-section-d {
min-height: auto;
width: 100%;
background-repeat: no-repeat;
background-position: center;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
padding: 100px 15px;
height:auto !important;
}