* {box-sizing: border-box;}

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

.header {
  overflow: hidden;
  background-color: #339933;
  padding: 20px 10px;
}

.footer{
  overflow: hidden;
  background-color: #339933;
  padding: 5px 10px;
  font-size: 15px;
  font-weight: bold;
  color: white;
  text-align: center;
  position: float;
  left: 0;
  bottom: 0;
  width: 100%;
}

h5{
  float: center;
  color: white;
  text-align: center;
  padding: 1px;
  text-decoration: none;
}

.header a {
  float: left;
  color: white;
  text-align: center;
  padding: 12px;
  text-decoration: none;
  font-size: 18px; 
  line-height: 25px;
  border-radius: 4px;
}

.header a.logo {
  font-size: 25px;
  font-weight: bold;
}

.header a:hover {
  background-color: #53c653;
  color: white;
}

.header a.active {
  background-color: #53c653;
  color: white;
}

.header-right {
  float: right;
}

footer {
  display: block;
}
img {
  max-width: 100%;
  height: auto;
   left: 0;
  bottom: 0;
  position: float;
}

.button {
  background-color: #339933;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
}

.button:hover {
  background-color: #4CAF50; /* Green */
  color: white;
}
.container {
align-items: center;
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: center;
}

@media screen and (max-width: 500px) {
  .header a {
    float: none;
    display: block;
    text-align: left;
  }
  
  .header-right {
    float: none;
  }
}