body {
  background-image: url(background.jpg);
  r: black;
  font-family: 'Courier New', Courier, monospace;
}

#container {
  width: 1000px;
  margin-left:auto;
  margin-right:auto;
  padding-top: 5%;
}

#header {
  background-image: linear-gradient(45deg,lightblue, white);
  border: 1px ridge black;
  text-align: center;
}

#sub {
  background-color: aliceblue;
  border-right: 1px solid black;
  border-left: 1px solid black;
  display: flex;
  overflow: hidden;
  white-space: nowrap;
}

#content {
 padding: 1px
}


#nav {
  background-color: white;
  width: 200;
  float : left;
  padding: 4px;
  height: 400;
  border-left: 1px solid black;
}

#main {
  background-color: yellow;
  width: 780;
  float : right;
  padding: 4px;
  height:400;
  border-right: 1px solid black;
  overflow: scroll;
}

#footer {
  
  background-color: red;
  clear: both;
  width: 1000px;
  margin-left:auto;
  margin-right:auto;

}

.stupid {
  display: grid;
  width: auto;
  grid-template-columns: 20% auto 20%;
  
}

.stupid > div {
background-color: white;
text-align: center;
border: 1px solid black;
min-height: 10px;
padding: 10px;
}

.idiot {
    animation-name: hi;
    animation-duration: 30s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    padding: 1px 10px 1px 10px;
}

@keyframes hi {
0% {transform: translateX(0%);}
100% {transform: translateX(-100%);}}



button {
  background-color: green;
  color: white;
  border: 1px solid black;
  border-radius: 10px;
  width: 90px;
  height: 30px;
  margin-bottom: 5px;
  cursor: pointer;
}

button:hover {
  background-color: black;
  font-size: 100%;
  transition: 0.2s;
}