stomaks,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
#menu {
display: flex;
overflow: auto;
}
.item {
min-width: 50%;
}
#item2{
background-color: #32CD32;
}
#item1{
background-color: #0000CD;
}
#item0{
background-color: #FFFF00;
}
</style>
</head>
<body>
<div id="content">
<div id="menu">
<div class='item' id="item0" onclick="menu.scrollLeft = this.offsetWidth">click me</div>
<div class='item' id="item1">1</div>
<div class='item' id="item2">2</div>
</div>
</div>
</body>
</html>