body{
background-color: rgba(0, 10, 100, 0.699);

  }
  img,embed,object,video{max-width:1000px;
  }

  nav a, button{
min-width: 48px;
min-height: 48px;
}

@media screen and (max-width: 700px)
{
body{

  background-color: rgb(228, 22, 193);
}
}

  body{
    margin: auto;
    width: 50%;
    border: 3px solid #ff0000;
    padding: 10px;
  
}