<div style="overflow:auto;width:50px">Горизонтальная прокрутка контента!</div>
<div style="border: 1px solid black;"><h1>Header</h1></div> <div style="height: 100px;width: 200px;border: 1px solid black;overflow: auto;margin-left: 30%;"> texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttext texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttext texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttext texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttext </div> <div style="border: 1px solid black;"><h1>Footer</h1></div>