p {
  font-size: 20px;
}
body {
    background-color: Yellow;
    border: 2px solid Black;
    border-radius: 16px;
    font-family: verdana;
    margin-left: auto;
    margin-right: auto;
    max-width: 1560px;
    min-width: 256px;
    padding: 24px;
    color: #111111;
    text-align: center;
}
html {
    background-image: linear-gradient(to left, red,orange,yellow,green,blue); 
}
nav ul {
    list-style-type: none;
    background-color: #B577B5;
    border: 4px solid #111111;
    border-radius: 10px;
    font-family: verdana;
    font-weight: bold;
    padding: 16px;
}
nav ul li {
    display: inline;
    border-right: 2px solid #111111;
    padding-right: 8px;
    padding-left: 8px;
}
nav ul li:last-child {
    border-right: none;
}
nav ul li a {
    text-decoration: none;
    color: #111111;
}
nav .selected {
    color:#606060;
}
nav li a:hover {
    text-decoration: underline;
}
img {
    border: 2px solid #111111;
    border-radius: 16px;
}
.buttoncorn{
  outline: none;
  background-color: #b8b337;
  padding: 15px 25px;
  font-size: 24px;
  text-align: center;
  cursor: pointer;
  color: #fff;
  border: none;
  border-radius: 15px;
  box-shadow: 0 9px #555
}

.buttoncorn:hover{
  background-color:#e0db31;
}

.buttoncorn:active{
  background-color: #e0db31;
  box-shadow: 0 5px #666;
  transform: translateY(4px);
}