html, body {
	font: Normal 18px "Noto Sans SC Medium";
	background:rgb(9, 9, 9);
  color: #A6A6A6;
}

@media (min-width: 2000px) {
	div {
		margin: 0 auto;
		width: 415px;
	}
}
a {
	text-decoration: none;
	margin: 1px auto;
}
input {
	font-size: 18px;
	outline: none;
	border: 1px solid #a1a1a1;
  background-color : #959292; 
}
.parent{
  border: 0px solid red;
  height: 600px;
  text-align: center;
  color: #A6A6A6;
background:rgb(9, 9, 9);
}

.child{
  border: 0px solid green;
  display: inline-block;
  width: 300px;
  text-align: left;
  vertical-align: top;
}

.parent:before{
  content:'';
  outline: 0px solid red;
  display: inline-block;
  height: 100%;
  vertical-align: top;
}
.parent:after{
  content:'';
  outline: 0px solid red;
  display: inline-block;
  height: 100%;
  vertical-align: top;
}