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页脚宽度:100%。只有父级是 Body,宽度为 100%,边距为 0。为什么两边都有边距?唯一具有边距的元素在页脚上方,但不应影响它。网址已删除。关闭。
添加padding: 0到您的身体元素。
padding: 0
body具有 15 像素的水平填充。
body