body{
  background: linear-gradient(to bottom right, #50a3a2 0%, #53e3a6 100%);
  color: white;
  font-weight: bold;
  font-size: large;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
} 

h1{
  text-align: center;
}
.grid-container {
  display: grid;
  grid-template-columns: 25% 50% 25%;
  height: 400px;
}
.grid-item {
  text-align: center;
}
.slidecontainer{
  margin-top: 15%;
  margin-bottom: 15%;
} 
.slidecontainer > i{
  margin-right: 5%;
} 
canvas{
  background-color: black;
}
table{
  margin: auto;
}
td{
  text-align: center;
  padding: 5px;
}
#restart {
  background-color: grey;
  color: white;
  padding: 3%;
  text-align: center;
  font-size: 16px;
  cursor: pointer;
}
#restart:hover{
  background-color: darkgray;
}
#item-b{
  padding-right: 15%;
  padding-left: 15%;
  height: 400px;
}
#item-d{
  display: none;
}

@media screen and (max-width: 769px) {
  #item-b {
    grid-column: 1 / 4;
    grid-row: 1;
    height: 250px;
    padding-right: 0;
    padding-left: 0;
  }
  #item-a {
    grid-column: 1 / 4;
    grid-row: 2;
  }
  #item-c {
    display: none;
  }
  #item-d {
    display: block;
    grid-column: 1 / 4;
    grid-row: 3;
    text-align: center;
    
  }
  .slidecontainer{
    margin-top: 5%;
    margin-bottom: 5%;
    float: left;
    width: 50%;
  } 
  #restart{
    float: right;
  }
  button{
    padding: 8%;
    color: white;
    background-color: black;
  }

}