CSS Font
- font-display - auto, block, swap, fallback, optional
- 优化字体还未加载时的显示
- Saferi 12+
- 停止支持 @font-face local - 白名单制
- font-family 白名单制
- 字体会内置回滚 - 例如 微软雅黑 -> PingFang SC
- 参考
默认字体
body {
/* 优先系统默认 */
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans',
'Droid Sans', 'Helvetica Neue', sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
code {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
}
body {
/* Sans-Serif */
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji',
'Segoe UI Emoji';
/* Serif */
font-family: Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif,
Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
/* Monospace */
font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
}
中文
body {
/* mac 优先 苹方 windows 优先 雅黑 */
font-family: 'PingFang SC', 'Helvetica Neue', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Helvetica, Arial,
Verdana, sans-serif;
}
font-face
@font-face {
font-family: 'OpenSans';
/* full name, postscript name, fallback */
src: local('Open Sans'), local('Open Sans'), url('/fonts/OpenSans.woff');
}
@font-face {
font-family: 'Montserrat';
src: local('Montserrat'), url('/assets/fonts/Montserrat.ttf');
/* 字体支持多种 weight */
font-weight: 100 900;
}
字体 子集
- unicode-range
- fonttools/fonttools 可用于生成子集
- https://web.dev/reduce-webfont-size/#unicode
字体单位如何选择
- 考虑因素
- 支持缩放
- 支持不同设备 - 缩放
- 响应式样式 - 缩放+断点
- 设计图
- 单位
- rem - 基于
<html>font-size 的相对单位
- rem - 基于
- 数值
- 375 / 16 = 23.4375
- 参考
- Is text sizing dead?
- Myth: Pixels units for text are bad for accessibility
- Myth: Don’t use pixels in media queries
- 实际不影响
- vitalets/react-native-extended-stylesheet#19
- 移动端长度适配方案
- Taro 设计稿及尺寸单位
- Is text sizing dead?
<meta name="viewport" content="width=device-width, initial-scale=1" />
let rem = 14;
if (width > 768) {
rem = 45;
} else if (width > 414) {
rem = 26;
} else if (width > 375) {
rem = 18;
} else if (width > 320) {
rem = 16;
}
html {
font-size: 16px;
@media screen and (min-width: 900px) {
font-size: 18px;
}
@media screen and (min-width: 1200px) {
font-size: 20px;
}
}