html {
    height: 100%;
}

body {
    min-height: 100%;
    background-color: #34495e;
}

html, body {
    margin: 0;
    padding: 0;
}

* {
    box-sizing: border-box;
}

.centered {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.msg {
    background-color: #34495e;
    text-align: center;
    color: #fff;
    -webkit-box-shadow: 0px 0px 4px 3px #3498db; /* #1abc9c #3498db #e74c3c */
    -moz-box-shadow: 0px 0px 4px 3px #3498db;
    box-shadow: 0px 0px 4px 3px #3498db;
    border: none;
}

.msg > img {
    width: 50%;
    display: block;
    margin: auto;
    margin-bottom: 10px;
}