first commit

历届学生/吴欣阳/项目开发/练习项目/课程练习/6.22/index.css

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+body{
+    position: relative;
+
+}
+.Popup{
+    width: 400px;
+    height: 200px;
+    background: aqua;
+    border: 3px ;
+    border: #ff9b9b;
+    display: none;
+    position: absolute;
+    top: 20px;
+    right: 50px;
+    padding: 20px;
+    box-sizing: border-box;
+}
+.block{
+    display: block;
+}
+.top{
+    display: flex;
+    width: 100%;
+    height: 20px;
+    align-items:center;
+    justify-content:space-between;
+    box-sizing: border-box;
+    padding-right: 10px;
+}
+
+.bottom{
+    display: flex;
+    justify-content: flex-end;
+}
+.bu1{
+    margin-right: 10px;
+}
+.bu2{
+    margin-right: 10px;
+}
+
+.back1{
+  background: rgba(0,0,0 0.4);
+}