html,
body {
    height: 100%;
    min-height: 100%;
}

body {
    font-family: 'Roboto', sans-serif;
    text-align: center;
    background-color: #efefef;
    margin: 0;
}

.wrapper {
    height: 100%;
    min-height: 100%;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
}

.container {
    width: 900px;
    max-width: 100%;
    background-color: #fff;
    border-radius: 3px;
    border: 1px solid #ddd;
    border-bottom-color: rgb(221, 221, 221);
    border-bottom-style: solid;
    border-bottom-width: 1px;
    box-shadow: 2px 3px 5px 0px #0000001a;
    border-bottom: 1px solid #d2d2d2;
    padding: 40px 20px;
}

h2 {
    font-weight: 300;
    text-align: center;
    font-size: 28px;
    color: #444;
    line-height: 1.3;
}

p {
    font-family: 'Roboto', sans-serif;
    text-align: center;
}

img {
    width: 600px;
    max-width: 100%;
}

h3 {
    font-size: 20px;
    font-weight: 300;
}

h4 {
    font-size: 15px;
    font-weight: 300;
    margin-bottom: 0;
}

h4>a{
    text-decoration: none;
    color: blue;
}

h4>a:hover{
    color: #3636f2;
}