diff --git a/src/main/resources/templates/default.html b/src/main/resources/templates/default.html
index 6754c32..236b636 100644
--- a/src/main/resources/templates/default.html
+++ b/src/main/resources/templates/default.html
@@ -36,7 +36,7 @@
 <!-- Navigation -->
 <nav class="navbar navbar-expand-lg navbar-dark fixed-top navbar-shrink" id="mainNav">
     <div class="container">
-        <a class="navbar-brand js-scroll-trigger" href="./">NG-Tracker</a>
+        <a class="navbar-brand js-scroll-trigger" href="/">NG-Tracker</a>
         <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse"
                 data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false"
                 aria-label="Toggle navigation">
diff --git a/src/main/resources/templates/error/403.html b/src/main/resources/templates/error/403.html
index 2a64877..d850fa9 100644
--- a/src/main/resources/templates/error/403.html
+++ b/src/main/resources/templates/error/403.html
@@ -6,8 +6,16 @@
 </head>
 <body>
 <div class="container" layout:fragment="content">
-    <h2>Доступ запрещён</h2>
-    <a href="/"><h3>Вернуться на главную</h3></a>
+    <section id="services">
+        <div class="container">
+            <div class="row">
+                <div class="col-lg-12 text-center">
+                    <h2 class="section-heading text-uppercase">Доступ запрещен</h2>
+                    <a href="/"><h3>Вернуться на главную</h3></a>
+                </div>
+            </div>
+        </div>
+    </section>
 </div>
 </body>
 </html>
\ No newline at end of file
diff --git a/src/main/resources/templates/error/404.html b/src/main/resources/templates/error/404.html
index 9cb1cd2..7233d72 100644
--- a/src/main/resources/templates/error/404.html
+++ b/src/main/resources/templates/error/404.html
@@ -6,8 +6,16 @@
 </head>
 <body>
 <div class="container" layout:fragment="content">
-    <h2>Страница не найдена</h2>
-    <a href="/"><h3>Вернуться на главную</h3></a>
+    <section id="services">
+        <div class="container">
+            <div class="row">
+                <div class="col-lg-12 text-center">
+                    <h2 class="section-heading text-uppercase">Страница не найдена</h2>
+                    <a href="/"><h3>Вернуться на главную</h3></a>
+                </div>
+            </div>
+        </div>
+    </section>
 </div>
 </body>
 </html>
\ No newline at end of file
diff --git a/src/main/resources/templates/error/500.html b/src/main/resources/templates/error/500.html
index 75f84a1..d42e7b4 100644
--- a/src/main/resources/templates/error/500.html
+++ b/src/main/resources/templates/error/500.html
@@ -6,8 +6,16 @@
 </head>
 <body>
 <div class="container" layout:fragment="content">
-    <h2>Ошибка сервера</h2>
-    <a href="/"><h3>Вернуться на главную</h3></a>
+    <section id="services">
+        <div class="container">
+            <div class="row">
+                <div class="col-lg-12 text-center">
+                    <h2 class="section-heading text-uppercase">Ошибка сервера</h2>
+                    <a href="/"><h3>Вернуться на главную</h3></a>
+                </div>
+            </div>
+        </div>
+    </section>
 </div>
 </body>
 </html>
\ No newline at end of file
diff --git a/src/test/java/BalanceEmployeeTest.java b/src/test/java/BalanceEmployeeTest.java
deleted file mode 100644
index 715f585..0000000
--- a/src/test/java/BalanceEmployeeTest.java
+++ /dev/null
@@ -1,88 +0,0 @@
-//import org.junit.jupiter.api.Test;
-//import ru.ulstu.platform.balance.boundary.BalanceEmployeeService;
-//import ru.ulstu.platform.balance.entity.dto.BalanceEmployeeDto;
-//import ru.ulstu.platform.balance.entity.dto.BalanceValueDto;
-//import ru.ulstu.platform.tools.entity.WorkType;
-//import ru.ulstu.platform.unit.entity.Unit;
-//
-//import java.util.Arrays;
-//import java.util.HashMap;
-//import java.util.List;
-//import java.util.Map;
-
-//import static org.junit.jupiter.api.Assertions.assertEquals;
-
-
-public class BalanceEmployeeTest {
-    private final static Integer YEAR_2010 = 2010;
-    private final static Integer YEAR_2011 = 2011;
-
-//    @Test
-//    public void testGetFreeEmployeesNextUnits() {
-//        WorkType workType = new WorkType();
-//        workType.setId(1L);
-//
-//        BalanceEmployeeService balanceEmployeeService = new BalanceEmployeeService();
-//
-//        Map<Unit, List<BalanceEmployeeDto>> allUnitBalances = new HashMap<>();
-//        Unit parent = new Unit(0L);
-//        Unit currentUnit = new Unit(1L);
-//        currentUnit.setParent(parent);
-//        Unit nextUnit = new Unit(2L);
-//        nextUnit.setParent(parent);
-//        Unit anotherUnit = new Unit(3L);
-//        anotherUnit.setParent(parent);
-//
-//        parent.getChildren().addAll(Arrays.asList(currentUnit, nextUnit, anotherUnit));
-//
-//        Double deficit = 10.0;
-//        Double proficit = deficit;
-//        Double fullUseProfict = 0.0;
-//
-//        //move all employees (deficit == proficit)
-//        BalanceValueDto balanceEmployeeValueDto = new BalanceValueDto(YEAR_2010, 1, workType, deficit * -1);
-//        allUnitBalances.put(currentUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, deficit * -1)));
-//        allUnitBalances.put(nextUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, proficit)));
-//        Double result = balanceEmployeeService.getFreeEmployeesNextUnits(allUnitBalances, currentUnit, balanceEmployeeValueDto);
-//        assertEquals(result, Double.valueOf(deficit));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(nextUnit).get(0).getMaxValue(YEAR_2010)));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(currentUnit).get(0).getMaxValue(YEAR_2010)));
-//
-//        //move part employees (deficit < proficit)
-//        Double proficitDeficitDiff = 5.0;
-//        proficit = deficit + proficitDeficitDiff;
-//        allUnitBalances.put(currentUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, deficit * -1)));
-//        allUnitBalances.put(nextUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, proficit)));
-//        result = balanceEmployeeService.getFreeEmployeesNextUnits(allUnitBalances, currentUnit, balanceEmployeeValueDto);
-//        assertEquals(result, Double.valueOf(deficit));
-//        assertEquals(Double.valueOf(proficitDeficitDiff), Double.valueOf(allUnitBalances.get(nextUnit).get(0).getMaxValue(YEAR_2010)));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(currentUnit).get(0).getMaxValue(YEAR_2010)));
-//
-//        //move all employees and deficit not compelte (deficit > proficit)
-//        proficit = deficit - proficitDeficitDiff;
-//        allUnitBalances.put(currentUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, deficit * -1)));
-//        allUnitBalances.put(nextUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, proficit)));
-//        result = balanceEmployeeService.getFreeEmployeesNextUnits(allUnitBalances, currentUnit, balanceEmployeeValueDto);
-//        assertEquals(result, Double.valueOf(deficit - proficitDeficitDiff));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(nextUnit).get(0).getMaxValue(YEAR_2010)));
-//        assertEquals(Double.valueOf(proficitDeficitDiff * -1.0), Double.valueOf(allUnitBalances.get(currentUnit).get(0).getMaxValue(YEAR_2010)));
-//
-//        //collect from several units
-//        proficit = deficit - proficitDeficitDiff;
-//        allUnitBalances.put(currentUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, deficit * -1)));
-//        allUnitBalances.put(nextUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, proficit)));
-//        allUnitBalances.put(anotherUnit, Arrays.asList(getBalanceDto(balanceEmployeeValueDto, proficit)));
-//        result = balanceEmployeeService.getFreeEmployeesNextUnits(allUnitBalances, currentUnit, balanceEmployeeValueDto);
-//        assertEquals(result, Double.valueOf(deficit));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(nextUnit).get(0).getMaxValue(YEAR_2010)));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(anotherUnit).get(0).getMaxValue(YEAR_2010)));
-//        assertEquals(Double.valueOf(fullUseProfict), Double.valueOf(allUnitBalances.get(currentUnit).get(0).getMaxValue(YEAR_2010)));
-//    }
-//
-//    private BalanceEmployeeDto getBalanceDto(BalanceValueDto balanceEmployeeValueDto, double deficit) {
-//        BalanceEmployeeDto dto = new BalanceEmployeeDto(BalanceEmployeeDto.BalanceEmployeeKey.DEFICIT);
-//        dto.setValue(balanceEmployeeValueDto.getPeriod().getYear(), 1, balanceEmployeeValueDto.getWorkType(), deficit);
-//        dto.setValue(YEAR_2011, 1, balanceEmployeeValueDto.getWorkType(), 100.0);
-//        return dto;
-//    }
-}
diff --git a/src/test/java/XlsDocumentBuilderTest.java b/src/test/java/XlsDocumentBuilderTest.java
deleted file mode 100644
index 8474fcf..0000000
--- a/src/test/java/XlsDocumentBuilderTest.java
+++ /dev/null
@@ -1,126 +0,0 @@
-import org.apache.poi.hssf.usermodel.HSSFWorkbook;
-import org.apache.poi.ss.usermodel.Workbook;
-import org.apache.poi.xssf.usermodel.XSSFWorkbook;
-import org.assertj.core.util.Files;
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
-import ru.ulstu.core.error.XlsParseException;
-import ru.ulstu.core.service.XlsDocumentBuilder;
-
-import java.io.*;
-
-public class XlsDocumentBuilderTest {
-    private final static String TEST_FILE_NAME = "testDoc.xlsx";
-    private final static String TEST_XLS_FILE_NAME = "testDoc.xls";
-    private final static String CELL_TEST_VALUE = "cell test value";
-
-    @Before
-    public void before() {
-        Files.delete(new File(TEST_FILE_NAME));
-        Files.delete(new File(TEST_XLS_FILE_NAME));
-    }
-
-    @Test
-    public void documentSaveTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile);
-        xlsDocumentBuilder.save();
-        File savedFile = new File(TEST_FILE_NAME);
-        XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(savedFile));
-        Assert.assertEquals(workbook.getActiveSheetIndex(), 0);
-    }
-
-    @Test
-    public void insertSheetTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet");
-        Assert.assertEquals(xlsDocumentBuilder.getSheetCount(), 2);
-        Assert.assertEquals(xlsDocumentBuilder.getActiveSheetIndex(), 1);
-    }
-
-    @Test
-    public void openExistingFile() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet")
-                .save();
-
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile);
-        Assert.assertEquals(xlsDocumentBuilder.getSheetCount(), 2);
-    }
-
-    @Test
-    public void openExistingXlsFile() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_XLS_FILE_NAME);
-        Workbook workbook = new HSSFWorkbook();
-        workbook.createSheet("123");
-        OutputStream out = new FileOutputStream(xlsFile);
-        workbook.write(out);
-
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile);
-        Assert.assertEquals(xlsDocumentBuilder.getSheetCount(), 1);
-    }
-
-    @Test
-    public void openWrongXlsFile() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_XLS_FILE_NAME);
-        OutputStream out = new FileOutputStream(xlsFile);
-        out.write(1);
-        out.close();
-
-        boolean wrongDocument = false;
-        try {
-            new XlsDocumentBuilder(xlsFile);
-        } catch (XlsParseException ex) {
-            wrongDocument = true;
-        }
-        Assert.assertTrue(wrongDocument);
-    }
-
-    @Test
-    public void setActiveSheetTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet")
-                .setActiveSheet(0);
-        Assert.assertEquals(xlsDocumentBuilder.getActiveSheetIndex(), 0);
-    }
-
-    @Test
-    public void getRowCountTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet");
-        Assert.assertEquals(xlsDocumentBuilder.getRowCount(), 0);
-        xlsDocumentBuilder.setCellValue(10, 10, CELL_TEST_VALUE);
-        Assert.assertEquals(xlsDocumentBuilder.getRowCount(), 10);
-    }
-
-    @Test
-    public void getColumnCountTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet");
-        Assert.assertEquals(xlsDocumentBuilder.getColumnCount(), 0);
-        xlsDocumentBuilder.setCellValue(10, 10, CELL_TEST_VALUE);
-        Assert.assertEquals(xlsDocumentBuilder.getColumnCount(), 10);
-    }
-
-    @Test
-    public void getCellAsStringTest() throws IOException, XlsParseException {
-        File xlsFile = new File(TEST_FILE_NAME);
-        XlsDocumentBuilder xlsDocumentBuilder = new XlsDocumentBuilder(xlsFile)
-                .insertNewSheet("new sheet");
-        xlsDocumentBuilder.setCellValue(10, 10, CELL_TEST_VALUE);
-        Assert.assertEquals(xlsDocumentBuilder.getCellAsString(10, 10), CELL_TEST_VALUE);
-    }
-
-    @After
-    public void after() {
-        Files.delete(new File(TEST_FILE_NAME));
-        Files.delete(new File(TEST_XLS_FILE_NAME));
-    }
-}
