HTML and CSS With flexbox for mobile and Grid for desktop is used.

Community feedback

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  Steven Toben•750

  @steventoben

  Posted over 4 years ago

  The main relative unit you should be using is rem. Rem units are relative to the size of the root font-size, which is usually 16px by default but can be changed in the browser's settings. User rem to set font-size, padding, margin, dimensions, etc. It's the main unit to use because it will scale to whatever the user has set their font-size to, so it helps with accessibility. Em is similar but it's relative to the selector's font-size instead of the root one. The value of a rem won't change, but the value of an em can. Em is really only useful for a couple things like media queries, letter-spacing, and if you want something relative to a component's font-size. vw is the width of your window, vh is the height of your window, so those could come in handy on occasion. Ex is the size of the lowercase 'x' of your font and it's not used for much. Ch is the width of the '0' and can be used to limit the width of paragraphs based on rough character limits. Rem is going to be the main unit, and most simplest unit to use. I would definitely stay away from any absolute units in almost every scenario.

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