A CodePen by Arbaoui Mehdi. Responsive lists and images - Responsive list like Dribbble. Full preview: http://cdpn.io/kmcvE

index.html

<div class="navbar navbar-inverse navbar-fixed-top">
  <div class="container">
    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".nav-collapse">
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
    </button>
    <a class="navbar-brand" href="#">Responsive Image</a>
    <div class="nav-collapse collapse">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Home</a></li>
        <li><a href="#about">About</a></li>
        <li><a href="#contact">Contact</a></li>
      </ul>
    </div>
  </div>
</div>

<!-- Responsive Image -->
<div class="container">
  <div class="starter-template">
    <ul>
      <li><img src="http://dribbble.s3.amazonaws.com/users/31348/screenshots/1185698/slightly_stoopid_teaser.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/12/screenshots/1185739/google_chromescreensnapz001_teaser.png" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/22225/screenshots/1185692/cooper_workshop_teaser.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/565/screenshots/1186432/kreyos_sport_mode_1x.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/6014/screenshots/1186351/oliver.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/93631/screenshots/1185715/drip-lion.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/104062/screenshots/1186702/pw_1x.png" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/7528/screenshots/1186361/genesisproject_1x.jpg" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/2896/screenshots/1186026/free_to_be_1x.png" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/2559/screenshots/1185760/screen_shot_2013-08-06_at_10.32.27_am.png" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/4737/screenshots/1178958/untitled-1_1x.png" alt=""></li>
      <li><img src="http://dribbble.s3.amazonaws.com/users/4737/screenshots/1186176/site_1x.jpg" alt=""></li>
    </ul>
  </div>
</div>

style.css

body {
  padding-top: 50px;
  background: #f8f8f8;
}
img {  
	max-width: 100%;
	max-height: 150px;
}

ul{
	padding: 0;
}

.content {
	width: 970px;
	margin: 0 auto;
}

.starter-template {
	margin-top: 30px;
}

.starter-template li {
	width: 20%;
	position: relative;
	float:left;
	list-style: none;
	background: #fff;
	padding: 10px;
	margin-bottom: 20px;
	margin-right: 20px;
	-webkit-border-radius: 3px;
	-moz-border-radius: 3px;
	border-radius: 3px;
	-webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.07);
	-moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.07);
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.07);
}

@media (max-width: 315px) {
	.starter-template li {
		margin: 0 0 3px 3px !important;
	}
}

@media (max-width: 735px) and (min-width: 450px) {
	.starter-template li {
		width: 30%;
		margin-right: 0;
		margin-left: 15px;

	}
}

@media (max-width: 450px) {
	.starter-template li {
		width: 45%;
		margin-right: 20px;	
		margin-left: 10px;
	}
	.starter-template li:nth-child(2n){
		margin-left: 0;
		margin-right: 0;
	}
}