$font-theme: font-theme !default; $font-family-sans-serif: -apple-system, "Helvetica Neue", Helvetica, Arial, "Pingfang SC", "Microsoft Yahei", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif; $font-family-serif: Georgia, "Times New Roman", Times, serif !default; $font-family-monospace: Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !default; $font-family-base: $font-family-sans-serif !default; // Pixel value used to responsively scale all typography. Applied to the `` element. $font-size-root: 16px !default; $font-size-base: 1rem !default; $font-size-lg: 1.25rem !default; $font-size-sm: .875rem !default; $font-size-xs: .75rem !default; $line-height-base: 1.5 !default; $font-size-h1: 2.5rem !default; $font-size-h2: 2rem !default; $font-size-h3: 1.75rem !default; $font-size-h4: 1.5rem !default; $font-size-h5: 1.25rem !default; $font-size-h6: 1rem !default; $display1-size: 6rem !default; $display2-size: 5.5rem !default; $display3-size: 4.5rem !default; $display4-size: 3.5rem !default; $display1-weight: 300 !default; $display2-weight: 300 !default; $display3-weight: 300 !default; $display4-weight: 300 !default;