::-webkit-scrollbar {
  width: 8px;
}

/* Track */
::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.25);
}
 
/* Handle */
::-webkit-scrollbar-thumb {
  background: #888; 
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: #555; 
}

body {
	height: 1000vh;
	transition: background 1s ease;
	margin: 0 !important;
	padding: 0 !important;
	background-image: url("../images/AndroidStudio.jpg");
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-size: cover;
}

.center_horizontal {
	padding: 0;
	margin: 0;
	width: 100%;
	text-align: center;
}

.div_content {
	width: 100%;
	height: 500px;
	margin: 0;
	padding: 0;
}