body{
    background-color:dimgray;
}

.navbar{
  position:fixed;
  top: 0px;
  left:0px;
  width: 100%;
  background-color:dimgray;
}

nav ul {
    margin: 0px;
    padding: 5px 0px 5px 30px;
  
}

nav li{
  display: inline;
  margin-right: 20px;
}

.blue-box {
  margin: 10%;
  height:50%;
 /*border: 5px solid blue;*/
}

.yellow-box {
  width: 75%;
  overflow: auto;
  white-space: nowrap;
  margin: auto;
  /*border: 5px solid yellow;*/
}
.green-box {
  margin: 1%;
 /* border: 5px solid green;*/
  text-align: center;
}

.red-box {
  margin: 1%;
 /* border: 5px solid red;*/
}
.img1  {
  width: 20%;
  height: 50%;
  padding: 5px;
}

p {
  color: white;
  font-size: 32px;
  display: center;
  margin-left: 15%;
  margin-right: 15%;
}
.purple-box {
  margin: auto;
  width: 50%;
  /*border: 5px solid purple;*/
}
.button {
  display:inline;
  margin-left: 35%;
}
img {
  width: 20%;
  height: 50%;
  padding: 5px;
}