body{
  background-image: url("wallpaper.jpg");
  background-attachment: fixed;
}

.videoarriba {
  height: 286px;
  width: 450px;
  padding: 0px;
}

.videoarriba:hover {
  border-style: dashed;
  border-color: lightblue;
}

#videocentral {
  margin-left: 300px;
  height: 572px;
  width: 900px;
}

button {
	-moz-box-shadow: 0px 10px 14px -7px #276873;
	-webkit-box-shadow: 0px 10px 14px -7px #276873;
	box-shadow: 0px 10px 14px -7px #276873;
	background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #599bb3), color-stop(1, #408c99));
	background:-moz-linear-gradient(top, #599bb3 5%, #408c99 100%);
	background:-webkit-linear-gradient(top, #599bb3 5%, #408c99 100%);
	background:-o-linear-gradient(top, #599bb3 5%, #408c99 100%);
	background:-ms-linear-gradient(top, #599bb3 5%, #408c99 100%);
	background:linear-gradient(to bottom, #599bb3 5%, #408c99 100%);
	filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#599bb3', endColorstr='#408c99',GradientType=0);
	background-color:#599bb3;
	-moz-border-radius:8px;
	-webkit-border-radius:8px;
	border-radius:8px;
	display:inline-block;
	cursor:pointer;
	color:#ffffff;
	font-family:Arial;
	font-size:20px;
	font-weight:bold;
	padding:13px 32px;
	text-decoration:none;
	text-shadow:4px 6px 3px #3d768a;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

p {
  text-align: center;
  border-style: groove;
  border-radius: 1000px;
  border-bottom-color: red;
  border-top-color: blue;
  background-color: gray;
  margin-left: 500px;
  margin-right: 500px;
}

button:hover {
	background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #408c99), color-stop(1, #599bb3));
	background:-moz-linear-gradient(top, #408c99 5%, #599bb3 100%);
	background:-webkit-linear-gradient(top, #408c99 5%, #599bb3 100%);
	background:-o-linear-gradient(top, #408c99 5%, #599bb3 100%);
	background:-ms-linear-gradient(top, #408c99 5%, #599bb3 100%);
	background:linear-gradient(to bottom, #408c99 5%, #599bb3 100%);
	filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#408c99', endColorstr='#599bb3',GradientType=0);
	background-color:#408c99;
}
button:active {
	position:relative;
	top:1px;
}