背景透明，无大小变化 * Use Custom Gutter Width: Yes * Gutter Width: 1 * Width: 100% * Max Width: 100%

了解gutter width。row的背景颜色。用padding来把内容剧中。 另一个效果是 https://www.elegantthemes.com/blog/divi-resources/download-a-free-header-footer-for-divis-pest-control-layout-pack

styicky 更换logo 查看： https://www.elegantthemes.com/blog/divi-resources/how-to-change-your-sticky-logo-on-scroll-with-divi