角6定义全局scss航向样式-引导

Question

我试图覆盖和定义我的角6应用程序的全局标题样式。如果我在styles.scss文件中这样做，它就能工作！

$h1-font-size: 50px;

但是，当我尝试根据屏幕大小(媒体查询)定义$h1字体大小时，它没有显示正确的字体大小，我有类似于这个ATM的东西：

//屏幕大小断点

$grid-breakpoints: (
  xs: 0,
  sm: 576px,
  md: 768px,
  lg: 992px,
  xl: 1200px
);

// media queries xs, md and lg
@media only screen and (min-width: map-get($grid-breakpoints, xs)) {
    $h1-font-size: 12px;
}

@media only screen and (min-width: map-get($grid-breakpoints, md)) {
    $h1-font-size: 18px;
}

@media only screen and (min-width: map-get($grid-breakpoints, lg)) {
    $h1-font-size: 50px;
}

angular.json：

  "styles": [
              "node_modules/bootstrap/dist/css/bootstrap-reboot.css",
              "node_modules/bootstrap/dist/css/bootstrap-grid.css",
              "src/styles.scss",
              ...
            ],

引导-SCSS.Variables.scss文件：scss文件

$h1-font-size:                $font-size-base * 2.5 !default;
$h2-font-size:                $font-size-base * 2 !default;
$h3-font-size:                $font-size-base * 1.75 !default;
$h4-font-size:                $font-size-base * 1.5 !default;
$h5-font-size:                $font-size-base * 1.25 !default;
$h6-font-size:                $font-size-base !default;

styles.scss文件：

/* You can add global styles to this file, and also import other style files */

@import '~bootstrap/scss/bootstrap-reboot';
@import '~bootstrap/scss/bootstrap-grid';
// Required
@import "~node_modules/bootstrap/scss/bootstrap";

/* Set global default font family */
$font-family-base: 'Source Sans Pro',
sans-serif;
body,
html {
    font-family: $font-family-base
}

$grid-breakpoints: ( xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px);
@media only screen and (min-width: map-get($grid-breakpoints, xs)) {
    $h1-font-size: 12px;
}

@media only screen and (min-width: map-get($grid-breakpoints, md)) {
    $h1-font-size: 12px;
}

@media only screen and (min-width: map-get($grid-breakpoints, lg)) {
    $h1-font-size: 50px;
}

有可能吗？根据屏幕大小覆盖引导-scss标题的最佳实践是什么？

链接到stackblitz示例- https://stackblitz.com/edit/angular-scss-global-headings

Answer 1

问题是，为变量分配一个新的vlaue取决于屏幕大小，但您从不使用它。只需选择h1并设置一个值。它适用于您的stackblitz示例。

@media only screen and (min-width: map-get($grid-breakpoints, xs)) {
    $h1-font-size: 10px;
    h1 {
      font-size: $h1-font-size
      }
}

@media only screen and (min-width: map-get($grid-breakpoints, md)) {
    $h1-font-size: 30px;
    h1 {
      font-size: $h1-font-size
      }
}

@media only screen and (min-width: map-get($grid-breakpoints, lg)) {
    $h1-font-size: 50px;
    h1 {
      font-size: $h1-font-size
      } 
}