html, body {height: 100%; margin:0;padding: 0;}

body {background: #AAA}

h1 {color: #666; font-size: 1.6rem; margin-top: 30px;}

.container {
    position: absolute;
    left: 0;right: 0;top: 0;
    width: 90%;
    max-width: 900px;
    min-height: 100%;
    padding: 0 5%;
    margin: 0 auto;
    background: #fafafa;
    box-shadow: 0 1px 3px #666;
}

.container div {
    line-height: 40px;
    margin: 8px 0;
}

input[type="text"], textarea {
    width: 80%;
}

textarea {
    height: 5rem;
}

button {
    border: 0;
    border-radius: 3px;
    box-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    cursor: pointer;
    margin: 5px 10px;
    padding:0 16px;
    height: 36px;
    min-width: 80px;
    font-size: 1.2rem;
    color: white;
    background: dodgerblue;
    transition: .2s;
}

button:hover {
    background: darkturquoise;
}