body {
  background-color: rgb(211,211,211);
  padding: 25px;
  font-family: sans-serif;
  text-align: center;
  
}


p{
 font-size: 1.3em;
}

.viper1, .engine{
  margin: auto;
  width: 40em;
}

img {
  width: 80%;
  max-width: 800px;
  height: auto;
  display: block;
  margin: 0 auto;
}

img {
  max-width: 100%;
  height: auto;
}

video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}