dos

Public/static/js/common.js

@@ -119,6 +119,8 @@ $(document).ready(function () {
     $('.home-page .btn-rule').on('click', showRule);
     //返回首页
     $('.rule-page .btn-back').on('click', hideRule);
+    //滚动条
+    $('.rule-block').on('scroll', ruleScroll);
 
 
 
@@ -156,6 +158,16 @@ $(document).ready(function () {
     });
 });
 
+function ruleScroll() {
+    //7.9-46.9
+    let blockHeight = $('.rule-block').height() / fontSize;
+    let wrapHeight = 155;
+    let scrollHeight = wrapHeight - blockHeight;
+    let step = (scrollHeight / 39) * fontSize;
+    let scrollTop = $('.rule-block').scrollTop();
+    $('.scroll-bar').css('top', scrollTop * step + 'rem');
+}
+
 function hideRule() {
     $('.rule-page').hide();
 }