chore：更换到主分支

src/style/index.scss

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+@import './variables.scss';
+@import './mixin.scss';
+@import './transition.scss';
+@import './element-ui.scss';
+@import './sidebar.scss';
+
+body {
+  width: 100%;
+  height: 100%;
+  margin: 0;
+  padding: 0;
+  -moz-osx-font-smoothing: grayscale;
+  -webkit-font-smoothing: antialiased;
+  text-rendering: optimizeLegibility;
+  font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Arial, sans-serif;
+}
+
+label {
+  font-weight: 700;
+}
+
+html {
+  overflow-x: hidden;
+  width: 100%;
+  height: 100%;
+  box-sizing: border-box;
+}
+
+#app {
+  width: 100%;
+  height: 100%;
+  overflow-x: hidden;
+}
+
+*,
+*:before,
+*:after {
+  box-sizing: inherit;
+}
+
+a:focus,
+a:active {
+  outline: none;
+}
+
+a,
+a:focus,
+a:hover {
+  cursor: pointer;
+  color: inherit;
+  text-decoration: none;
+}
+
+div:focus {
+  outline: none;
+}
+
+ul {
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.clearfix {
+  &:after {
+    visibility: hidden;
+    display: block;
+    font-size: 0;
+    content: " ";
+    clear: both;
+    height: 0;
+  }
+}
+
+// main-container global css
+.app-container {
+  padding: 20px;
+}
+
+.login,
+.register {
+  width: 100%;
+  height: 100%;
+  overflow-x: hidden;
+  background: url("../assets/bg.png") no-repeat center;
+  background-size: cover;
+}
+
+/* 头部用户信息样式重置 */
+.hidden {
+  display: none !important;
+}
+
+.resetTop {
+  top: 48px !important;
+}
+
+.html-grey {
+    filter: grayscale(100%);
+    -webkit-filter: grayscale(100%);
+    -moz-filter: grayscale(100%);
+    -ms-filter: grayscale(100%);
+    -o-filter: grayscale(100%);
+    filter: url("data:image/svg+xml;utf8,#grayscale");
+    filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
+    -webkit-filter: grayscale(1);
+}