demo在这https://jsfiddle.net/f32m7ns9/如果不改变父类的overflow，怎样让倾斜的部分不隐藏掉。（移动端不考虑margin）
光阴似箭催人老，日月如移越少年。
It doesn’t work. When you set transform-origin: left bottom;, you can only ensure that one end does not exceed. In order to ensure that u exceeds both ends, you can only set the width of the child element and use cos. Calculate slowly
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It doesn’t work. When you set transform-origin: left bottom;, you can only ensure that one end does not exceed. In order to ensure that u exceeds both ends, you can only set the width of the child element and use cos. Calculate slowly