CSS溢出：自动隐藏超出父级大小的绝对定位的子元素

I have a DIV that will be the width of the page but the contents may be too wide to fit. I've set up overflow-x:auto for it so that the contents are scrollable. My problem is that I'd like to make each of the child divs expand and be visible when you hover on them but they are currently clipped if they exceed the parent div.I have a DIV that will be the width of the page