body {
  background-color: rgb(188,245,216);
  color: white;
  font-family: Garamond, serif;
  
  margin: 0 auto;
  max-width: 900px;
  padding: 20px;
  
  background-image: url('mountains.jpg');
  background-size: cover;
  
  

}

.centerparent {
  display: flex;
  justify-content: center;
}

.main {
  background-color: rgba(188, 245, 216, 0.75);
  border: 1px solid rgba(88, 145, 116, 1);
  color: black;
  padding: 10px;
}

h1,h2,h3,h4 {
  text-align: center;
  color: darkgreen;
  font-family: Georgia, serif;
}

.centered {
  text-align: center;
}

.flextainer {
 display: flex;
 justify-content: space-between;
}

.left {
 flex-grow: 1;
 margin-right: 20px;
}
.right {
  flex-grow: 1;
}

.totw {
  padding: 5px;
}

.list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style-type: none;
  justify-content: center;
}
.list a {
  color: rgb(27, 55, 48);
  text-decoration: none;
  transition: all 0.5s;
}
.list a:hover {
  color: rgb(0, 0, 0);
  text-decoration: underline;
}
summary:hover {
 cursor: pointer;
 color: darkgreen;
}
summary h3 {
 text-align: left !important; 
}
details {
 padding: 5px; 
}