styles.css

@import url(https://fonts.googleapis.com/css?family=Open+Sans);
input[type=text] {
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
input[type=button] {
    background-color: #4CAF50;
    color: white;
    padding: 10px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: block;
}
input[type=button]:hover {
    background-color: #45a049;
}
body {
    margin: auto;
    text-align: center;
    padding: 20px;
    font-family: 'Open Sans', serif;
}
label {
    display: inline-block;
    width: 5em;
}
#author,
#content {
    width: 30em;
}
#controls {
    width: 38em;
}
#submit, #refresh {
    display: inline-block;
}
#submit { 
    margin: 32px;
}

#main{
	width: 50%;
	margin: 0 auto;
}