html, body{
    height: 100%;
    background: #dddddd;
}

h2 {
    width: 100%;
    text-align:center;
}

textarea{
    resize: none; 
    width: 100%;
    height: 100%;
    white-space: pre;
}

button{
    width: 100%; 
    height: 45px;
}

form {
    width: 100%; 
    height: 100%; 
    padding: 10px;
}

.container {
    width: 100%;
    padding-right: 0px;
    padding-left: 0px;
    padding-bottom: 10px;
    margin-right: 0px;
    margin-left: 0px;
}