1.) You can't initiate DOM actions with CSS or pure HTML. You always need a manipulating language (like JavaScript)
2.) You can remove the buttons by overwriting the current CSS and adjust the visibility or display tag to render them away or (placeholding) invisible.
In the end you really need JavaScript for this to trigger dynamic hiding and to make the automatic slide happen with setIntervals.
Edit:
This might be something for you to work with animating the slider:
#container {
height: 200px;
width: 800px;
border: 1px solid #333;
overflow: hidden;
margin: 25px auto;
}
#box {
background: orange;
height: 180px;
width: 400px;
margin: 10px -400px;
-webkit-animation-name: move;
-webkit-animation-duration: 4s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-direction: right;
-webkit-animation-timing-function: linear;
}
#box:hover {
-webkit-animation-play-state: paused;
}
@-webkit-keyframes move {
0% {
margin-left: -400px;
}
100% {
margin-left: 800px;
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML</title>
<link rel="stylesheet" href="main2.css" type="text/css" />
</head>
<body>
<div id="container">
<div id="box">as</div>
</div>
</body>
</html>
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