* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background: #f6f4f2;
    font-family:'Helvetica Neue', Helvetica, sans-serif;
    margin: 13px;
}
h1 {
    text-align: center;
    margin-bottom: 26px;
    color: #3e3e3e;
}
.grid {
    margin: 0 auto;
    position: relative;
    width: 100%;
}
.grid-item {
    font-size: 13px;
    padding: 0px 0px 32px 0px;
    position: absolute;
    background: #fff;
    box-sizing: border-box;
    box-shadow: 0px 2px 5px 1px #ccc;
    width:auto;
    height: auto;
}

img {
    max-width: 100%;
    height:auto;
    display: inline-block;
    vertical-align: middle;
}