优化样式

src/assets/css/index.scss

@@ -1,4 +1,5 @@
 @import "./styles.scss";
+
 @font-face {
   font-family: 'iconfont';  /* project id 1995974 */
   src: url('https://at.alicdn.com/t/font_1995974_ihzpmuv4lpk.eot');
@@ -272,6 +273,15 @@ img {
   align-items: center;
 }
 
+.flex-base {
+  display: flex;
+  align-items: baseline;
+
+  &.center {
+    justify-content: center;
+  }
+}
+
 .flex-between {
   display: flex;
   align-items: center;

src/assets/css/styles.scss

@@ -7,6 +7,9 @@
 }
 
 @for $i from 1 through 30 {
+  .f-#{$i} {
+    font-size: #{$i}px;
+  }
   @each $p, $pv in (margin:m, padding:p) {
     .#{$pv}-#{$i} {
       #{$p}: #{$i}px;
@@ -27,3 +30,6 @@
     }
   }
 }
+.through{
+  text-decoration: line-through;
+}