* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.topnav {
  overflow: hidden;
  background-color: #e9e9e9;
}

.topnav a {
  float: left;
  display: block;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #2196f3;
  color: white;
}

.topnav .login-container {
  float: right;
}

.topnav input[type="text"] {
  padding: 6px;
  margin-top: 8px;
  font-size: 17px;
  border: none;
  width: 120px;
}

.topnav .login-container button {
  float: right;
  padding: 6px 10px;
  margin-top: 8px;
  margin-right: 16px;
  background-color: #555;
  color: white;
  font-size: 17px;
  border: none;
  cursor: pointer;
}

.topnav .login-container button:hover {
  background-color: green;
}

@media screen and (max-width: 600px) {
  .topnav .login-container {
    float: none;
  }

  .topnav a,
  .topnav input[type="text"],
  .topnav .login-container button {
    float: none;
    display: block;
    text-align: left;
    width: 100%;
    margin: 0;
    padding: 14px;
  }

  .topnav input[type="text"] {
    border: 1px solid #ccc;
  }
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

/* Style inputs */
input[type="text"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  margin-top: 6px;
  margin-bottom: 16px;
  resize: vertical;
}

input[type="mail"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  margin-top: 6px;
  margin-bottom: 16px;
  resize: vertical;
}

input[type="submit"] {
  background-color: #04aa6d;
  color: white;
  padding: 12px 20px;
  border: none;
  cursor: pointer;
}

input[type="submit"]:hover {
  background-color: #45a049;
}
.container {
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 10px;
}

.column {
  float: left;
  width: 50%;
  margin-top: 6px;
  padding: 20px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

@media screen and (max-width: 600px) {
  .column,
  input[type="submit"] {
    width: 100%;
    margin-top: 0;
  }
}