body {
  background-color:#333;
  overflow: hidden;
  text-align:center;
  display: flex;
  align-items: center;
  justify-content: center;   
}

body,
html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

svg{
 max-width: 100%;
  height: 100%;
  visibility:hidden;
  overflow:hidden;
   
}