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

.button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 12px 24px;
  border-radius: 4px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.3s;
  cursor: pointer;
}

.button1 {
  background-color: white; 
  color: black; 
  border: 2px solid #4CAF50;
}

.button1:hover {
  background-color: #4CAF50;
  color: white;
}

.button2 {
  background-color: white; 
  color: black; 
  border: 2px solid #f44336;
}

.button2:hover {
  background-color: #f44336;
  color: white;
}

.button3 {
  background-color: white;
  color: black;
  border: 2px solid #555555;
  padding: 2px 2px;
  border-radius: 4px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 2px 2px;
  transition-duration: 0.3s;
  cursor: pointer;
}

.button3:hover {
  background-color: #555555;
  color: white;
}

input[type=text], input[type=number], select {
  width: 25%;
  padding: 12px 20px;
  margin: 8px 0;
  display: inline-block;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

.divmain {
  margin: auto;
  width: 95%;
  border-radius: 8px;
  background-color: #f2f2f2;
  padding: 20px;
}

.divsub {
  margin: auto;
  border-radius: 8px;
  background-color: #ccc;
  padding: 15px;
}

.header {
  overflow: hidden;
  background-color: #E0E5E5;
}

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

.dropdown {
  float: right;
  overflow: hidden;
}

.dropdown .dropbtn {
  font-size: 16px;  
  border: none;
  outline: none;
  color: black;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: gray;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

.dropdown-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

.dropdown-content a:hover {
  background-color: #ddd;
}

.dropdown:hover .dropdown-content {
  display: block;
}