间距

Use the theme.spacing() helper to create consistent spacing between the elements of your UI.

Material-UI uses a recommended 8px scaling factor by default.

const theme = createMuiTheme();

theme.spacing(2) // = 8 * 2

Custom spacing

您可以通过提供以下内容来更改间距转换值：

• 一个数字

const theme = createMuiTheme({
  spacing: 4,
});

theme.spacing(2) // = 4 * 2

• a function

const theme = createMuiTheme({
  spacing: factor => `${0.25 * factor}rem`, // (Bootstrap strategy)
});

theme.spacing(2); // = 0.25 * 2rem = 0.5rem = 8px

• an array

const theme = createMuiTheme({
  spacing: [0, 4, 8, 16, 32, 64],
});

theme.spacing(2); // = 8

多个参数

theme.spacing() 最多接受4个参数。 You can use the arguments to reduce the boilerplate.

-padding: `${theme.spacing(1)}px ${theme.spacing(2)}px`, // '8px 16px'
+padding: theme.spacing(1, 2), // '8px 16px'

Mixing string values is also supported:

margin: theme.spacing(1, 'auto'), // '8px auto'