html, body {
	font-family: sans-serif;
	width: 100%;
	margin: 0;
	padding: 0;	
}

table {
	border: 0px;
	border-collapse: collapse;
	margin:  0px;
}

th, td {
	border: 0px;
	padding: 10px;
}

#center_form {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    align-content: center; 
    justify-content: center; 
    overflow: auto;   
}