<!DOCTYPE html>
<html lang="en">
<head>
<title>CSS Template</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

/* Body */
body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}

/* Header Title */
.header {
  padding:  1px;
  text-align: center;
  background: #1f2535;
  color: white;
}

/* Header size */
.header h1 {
  font-size: 100px;
}

/* Navigation bar */
.navbar {
  overflow: hidden;
  background-color: #333;
  justify-content: space-between;
}

/* Navigation bar links */
.navbar a {
  float: left;
  display: block;
  color: white;
  text-align: center;
  padding: 14px 20px;
  text-decoration: none;
}

/* Right-aligned link */
.navbar a.right {
  float: right;
}

/* Change colour on hover */
.navbar a:hover {
  background-color: #ddd;
  color: black;
}

.main {   
  -ms-flex: 70%;
  flex: 70%;
  background-color: white;
  image-rendering: center;
  padding: 20px;
}

.footer {
  padding: 20px;
  text-align: center;
  background: #1f2535;
  color: white;
}

/* Responsive layout */
@media screen and (max-width: 400px) {
  .navbar a {
    float: none;
    width: 100%;
  }
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

.checked {
  color: orange;
}

/* Contact us form */
input[type=text], select, textarea {
  width: 100%; 
  padding: 12px;
  margin-left: 10px;
  margin-right: 10px;
  border: 1px solid #ccccccd3; 
  border-radius: 4px; 
  box-sizing: border-box; 
  margin-top: 6px; 
  margin-bottom: 16px; 
  resize: vertical
}

/* Contact us form submit button */
input[type=submit] {
  background-color: #1f2535;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* Contact us submit button hover*/
input[type=submit]:hover {
  background-color: #061748;
}

/* Contact us form background */
.container {
  border-radius: 5px;
  background-color: #f2f2f2c7;
  padding: 20px;
}
</style>
</head>
</html>