src/index.css
@import './styles/fonst.css';
@import './styles/normalize.css';
@import './styles/nullstyles.css';
@import './styles/variables.css';
body {
font-family: 'Roboto', sans-serif;
font-style: normal;
line-height: normal;
font-size: 14px;
background-color: var(--background);
}
#root {
width: 100%;
min-width: 320px;
min-height: 100%;
}