body{
  background-color:rgb(235, 89, 69)
}
h1{
  position:  absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}
h3{
  position:  absolute;
  left: 50%;
  top: 15%;
  transform: translateX(-50%);
  text-align: center;
}
#simpleMath{
  position:  absolute;
  left: 50%;
  top: 25%;
  transform: translateX(-50%);
}
#btn2{
  position:  absolute;
  left: 50%;
  top: 30%;
  transform: translateX(-50%);
}
#btn3{
  position:  absolute;
  left: 50%;
  top: 35%;
  transform: translateX(-50%);
}
#btn4{
  position:  absolute;
  left: 50%;
  top: 40%;
  transform: translateX(-50%);
}
#btn5{
  position:  absolute;
  left: 50%;
  top: 45%;
  transform: translateX(-50%);
}
#image{
  position:  absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%);
}
#image2{
  position:  absolute;
  left: 50%;
  top: 60%;
  transform: translateX(-50%);
}