Override Material UI Button Text

Question

Material UI button defaults the text within the button to uppercase. I want to override the text with the button to be the same as I have typed and not be uppercase.

I have tried to override the styling by using texttransform - none

viewButton: 
{ 
backgroundColor: "#00D2BC",
radius: "3px",
color: "#FFFFFF",
texttransform: "none"
}

<Button
 className={classes.viewButton}
 data-document={n.id}
 onClick={this.handleView}
>
   View Document
</Button>

Can anyone help with this.

Thanks

Answer 1

The only problem I see with the code in your question is that you have "texttransform" instead of "textTransform".

This aspect of the buttons is controlled by the theme (here, here, and here) so it is also possible to change this via the theme. I have demonstrated both approaches in the code below.

import React from "react";
import ReactDOM from "react-dom";
import {
  makeStyles,
  createMuiTheme,
  MuiThemeProvider
} from "@material-ui/core/styles";
import Button from "@material-ui/core/Button";

const useStyles = makeStyles({
  button: {
    textTransform: "none"
  }
});
const defaultTheme = createMuiTheme();
const theme = createMuiTheme({
  typography: {
    button: {
      textTransform: "none"
    }
  }
});

function App() {
  const classes = useStyles();
  return (
    <MuiThemeProvider theme={defaultTheme}>
      <Button>Default Behavior</Button>
      <Button className={classes.button}>Retain Case Via makeStyles</Button>
      <MuiThemeProvider theme={theme}>
        <Button>Retain Case Via theme change</Button>
      </MuiThemeProvider>
    </MuiThemeProvider>
  );
}

const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);

---

Here's a similar example but for v5 of Material-UI:

import React from "react";
import ReactDOM from "react-dom";
import { styled, createTheme, ThemeProvider } from "@material-ui/core/styles";
import Button from "@material-ui/core/Button";

const StyledButton = styled(Button)(`
  text-transform: none;
`);
const defaultTheme = createTheme();
const theme1 = createTheme({
  typography: {
    button: {
      textTransform: "none"
    }
  }
});
const theme2 = createTheme({
  components: {
    MuiButton: {
      styleOverrides: {
        root: {
          textTransform: "none"
        }
      }
    }
  }
});

function App() {
  return (
    <ThemeProvider theme={defaultTheme}>
      <Button>Default Behavior</Button>
      <StyledButton>Retain Case Via styled</StyledButton>
      <ThemeProvider theme={theme1}>
        <Button>Retain Case Via theme change</Button>
      </ThemeProvider>
      <ThemeProvider theme={theme2}>
        <Button>Retain Case Via alternate theme change</Button>
      </ThemeProvider>
    </ThemeProvider>
  );
}

const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);

Answer 2

For those who don't wanna go an do this everywhere inside each components try global ovverrides,

const myTheme = createMuiTheme({
    overrides: {
        MuiButton: {
            root: {
                textTransform: 'none'
            }
        }
    },
});

You make a theme object like so, and provide it to the theme provider which should wrap your app component in the index.js file

<ThemeProvider theme={myTheme}>
    <PersistGate loading={null} persistor={persistor}>
        <App />
    </PersistGate>
</ThemeProvider>

Imports:

import { createMuiTheme, ThemeProvider } from '@material-ui/core/styles';