diff --git a/source/connectionDialog.cpp b/source/connectionDialog.cpp
index c52c03a..041d127 100644
--- a/source/connectionDialog.cpp
+++ b/source/connectionDialog.cpp
@@ -19,7 +19,7 @@ ConnectionDialog::ConnectionDialog(QWidget *parent)
     {
         //Linux下默认的Qt::Dialog即使有父窗口也无法按照子窗口的行为进行展示，并且最大、最小按钮不好关闭，因此需要去掉Dialog属性，随之而来的问题是，模态无法起作用
         setWindowFlags(windowFlags() & ~Qt::Dialog);
-        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;background-color:rgb(30,30,30);}");
+        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;}");
 
         m_customBorderContainer = new CustomBorderContainer(this);
         m_customBorderContainer->setOperationOptions(CustomBorderContainer::Movable | CustomBorderContainer::Resizable);
diff --git a/source/messageBox.cpp b/source/messageBox.cpp
index e6cbbd7..24fa8c4 100644
--- a/source/messageBox.cpp
+++ b/source/messageBox.cpp
@@ -13,7 +13,7 @@ MessageBox::MessageBox(QWidget *parent)
     {
         //Linux下默认的Qt::Dialog即使有父窗口也无法按照子窗口的行为进行展示，并且最大、最小按钮不好关闭，因此需要去掉Dialog属性，随之而来的问题是，模态无法起作用
         setWindowFlags(windowFlags() & ~Qt::Dialog);
-        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;background-color:rgb(30,30,30);}");
+        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;}");
     }
     else
     {
diff --git a/source/messageDialog.cpp b/source/messageDialog.cpp
index dde6d90..06ea32c 100644
--- a/source/messageDialog.cpp
+++ b/source/messageDialog.cpp
@@ -13,7 +13,7 @@ MessageDialog::MessageDialog(QWidget *parent)
     {
         //Linux下默认的Qt::Dialog即使有父窗口也无法按照子窗口的行为进行展示，并且最大、最小按钮不好关闭，因此需要去掉Dialog属性，随之而来的问题是，模态无法起作用
         setWindowFlags(windowFlags() & ~Qt::Dialog);
-        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;background-color:rgb(30,30,30);}");
+        setStyleSheet("QDialog{border: 1px solid rgb(110,110,110);border-radius:5px;}");
     }
     else
     {
diff --git a/ui/connectionDialog.ui b/ui/connectionDialog.ui
index 10a87b2..627f801 100644
--- a/ui/connectionDialog.ui
+++ b/ui/connectionDialog.ui
@@ -52,6 +52,7 @@
           <string notr="true">QTableView
 {
 	outline:0px;
+    border:0px;
 }
 QTableView::item
 {
diff --git a/ui/mainwindow.ui b/ui/mainwindow.ui
index 2f1b6ee..233ccfc 100644
--- a/ui/mainwindow.ui
+++ b/ui/mainwindow.ui
@@ -177,17 +177,20 @@ QTabBar::tab
     border: 0px;
     padding-left:10px;
     padding-right:10px;
-	border-bottom: 1px solid rgb(50,50,50);
+    margin-bottom:-1px;
+    border-bottom: 1px solid rgb(50,50,50);
 }
 QTabBar::tab:selected
 {
     color:rgb(70,130,180);
+    margin-bottomo:0px;
     border-bottom: 2px solid rgb(70,130,180);
 }
 
 QHeaderView
 {
-	background-color: rgb(30, 30, 30);
+    border:0px;
+	background-color: rgb(40, 40, 40);
 }
 QHeaderView::section
 {