body {
margin:0;
}

header {
background-color:#175D8E;
text-align:center;
font-size:36px;
font-weight:bold;
padding:12px;
}

form {margin:12px auto;width:100%;max-width:500px;display:flex;flex-direction:column;gap:3px;}
form input,button {padding:2%;}
button {background-color:#00b140;color:#f2f2f2;font-weight:bold;font-size:18px;border:0;}

table {
width:98%;
margin:1% 1%;
border-collapse:collapse;
}

td {
padding:6px;
border:1px solid #000;
width:10%;
}