diff --git a/apps/content/models.py b/apps/content/models.py
index 7178efd4..e57746f3 100644
--- a/apps/content/models.py
+++ b/apps/content/models.py
@@ -184,7 +184,7 @@ class Banner(models.Model):
     def is_video_url(self):
         return self.url and ('vimeo.com' in self.url
                              or 'youtube.com' in self.url and 'watch' in self.url
-                             or 'youto.be' in self.url)
+                             or 'youtu.be' in self.url)
 
 
 class Contest(models.Model):
diff --git a/apps/course/templates/course/course.html b/apps/course/templates/course/course.html
index 99642e86..ac76811a 100644
--- a/apps/course/templates/course/course.html
+++ b/apps/course/templates/course/course.html
@@ -166,25 +166,25 @@
         </div>
       </div>
       <div class="course__actions">
-        <a href="{{ course.url }}" class="course__action btn btn_lg{% if not only_lessons %} btn_stroke{% else %} btn_gray{% endif %}">Описание курса</a>
+        <a href="{{ course.url }}" class="course__action btn btn_lg{% if not only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}">Описание курса</a>
         {% if request.user.is_authenticated %}
           {% if course.author == request.user and request.user.role >= request.user.AUTHOR_ROLE %}
           <a
             href="{% url 'course-only-lessons' course.id %}"
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             {% if not user.is_authenticated %}data-popup=".js-popup-auth"{% endif %}
             >УРОКИ
           </a>
           {% elif request.user.role == request.user.ADMIN_ROLE %}
           <a
             href="{% url 'course-only-lessons' course.id %}"
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             {% if not user.is_authenticated %}data-popup=".js-popup-auth"{% endif %}
             >УРОКИ
           </a>
           {% else %}
           <a
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             {% if paid or not course.price %}
             href="{% url 'course-only-lessons' course.id %}"
             {% else %}
@@ -203,7 +203,7 @@
           {% endif %}
         {% else %}
         <a
-          class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+          class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
           data-popup=".js-popup-auth">УРОКИ
           <svg class="icon icon-lock">
             <use xlink:href="{% static 'img/sprite.svg' %}#icon-lock"></use>
diff --git a/apps/course/templates/course/course_only_lessons.html b/apps/course/templates/course/course_only_lessons.html
index 5942dd74..f8931728 100644
--- a/apps/course/templates/course/course_only_lessons.html
+++ b/apps/course/templates/course/course_only_lessons.html
@@ -150,25 +150,25 @@
         </div>
       </div>
       <div class="course__actions">
-          <a href="{{ course.url }}" class="course__action btn btn_lg{% if not only_lessons %} btn_stroke{% else %} btn_gray{% endif %}">Описание курса</a>
+          <a href="{{ course.url }}" class="course__action btn btn_lg{% if not only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}">Описание курса</a>
           {% if course.author == request.user and request.user.role >= request.user.AUTHOR_ROLE %}
           <a
             href="{% url 'course-only-lessons' course.id %}"
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             {% if not user.is_authenticated %}data-popup=".js-popup-auth"{% endif %}
             >УРОКИ
           </a>
           {% elif request.user.role == request.user.ADMIN_ROLE %}
           <a
             href="{% url 'course-only-lessons' course.id %}"
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             {% if not user.is_authenticated %}data-popup=".js-popup-auth"{% endif %}
             >УРОКИ
           </a>
           {% else %}
           <a
             href="{% if paid or not course.price %}{% url 'course-only-lessons' course.id %}{% else %}#{% endif %}"
-            class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
+            class="course__action btn btn_lg{% if only_lessons %} btn_stroke-green{% else %} btn_gray{% endif %}"
             >УРОКИ
             {% if not paid and course.price %}
             <svg class="icon icon-lock">
diff --git a/apps/course/templates/course/courses.html b/apps/course/templates/course/courses.html
index 6b96b327..6f85a157 100644
--- a/apps/course/templates/course/courses.html
+++ b/apps/course/templates/course/courses.html
@@ -20,7 +20,7 @@
         {% endif %}
         <input type="hidden" name="age" value="{{ age.0|default:'' }}" />
         <input name="q" class="course-search__query" type="text" value="{{ search_query|default:'' }}" />
-        <button class="btn course-search__search" type="submit">
+        <button class="btn course-search__search" type="submit" style="border-radius: 20px;">
           <svg class="icon icon-search">
             <use xlink:href="{% static 'img/sprite.svg' %}#icon-search"></use>
           </svg>
diff --git a/apps/course/views.py b/apps/course/views.py
index 34f329eb..d4bd0298 100644
--- a/apps/course/views.py
+++ b/apps/course/views.py
@@ -230,7 +230,6 @@ class CourseView(DetailView):
         except queryset.model.DoesNotExist:
             raise Http404(_("No %(verbose_name)s found matching the query") %
                           {'verbose_name': queryset.model._meta.verbose_name})
-        obj.cover = None
         return obj
 
     def get_context_data(self, **kwargs):
@@ -360,10 +359,6 @@ class CoursesView(ListView):
             for course in context['course_items']:
                 if course.id in can_buy_again_courses:
                     course.buy_again_price = course.price / 2
-        for course in context['course_items']:
-            course.cover = None
-        for course in context['new_courses']:
-            course.cover = None
         return context
 
     def get_template_names(self):
diff --git a/project/templates/blocks/about.html b/project/templates/blocks/about.html
index d24701e3..23427255 100644
--- a/project/templates/blocks/about.html
+++ b/project/templates/blocks/about.html
@@ -10,7 +10,7 @@
         <p>Вы житель мегаполиса и&nbsp;у&nbsp;вас нет времени дополнительно развивать своего ребенка?
       Или&nbsp;вы&nbsp;живете в&nbsp;маленьком городе,
         где&nbsp;нет&nbsp;качественных школ и&nbsp;секций для&nbsp;детей?</p>
-        <p><b>Lil-School</b>&nbsp;это решение для&nbsp;тех&nbsp;родителей, кто&nbsp;стремится дать лучшее своему ребенку.
+        <p><b>Lil School</b> -&nbsp;это решение для&nbsp;тех&nbsp;родителей, кто&nbsp;стремится дать лучшее своему ребенку.
           Учитесь, не&nbsp;выходя из&nbsp;дома!</p>
       </div>
       <div class="section__buttons">
diff --git a/project/templates/blocks/footer.html b/project/templates/blocks/footer.html
index 021faff8..07edfa55 100644
--- a/project/templates/blocks/footer.html
+++ b/project/templates/blocks/footer.html
@@ -24,6 +24,7 @@
             <!-- <a class="footer__link" href="{% url 'school:school' %}">Онлайн-школа</a> -->
             <a class="footer__link" href="{% url 'school:drawing-camp' %}">Рисовальный лагерь</a>
             <a class="footer__link" href="{% url 'courses' %}">Видео-курсы</a>
+            <a class="footer__link" href="{% url 'gift-certificates' %}">Сертификаты</a>
             <a class="footer__link" href="https://blog.lil.school">Блог</a>
           </div>
           <div>
diff --git a/project/templates/blocks/header.html b/project/templates/blocks/header.html
index 24b5ecd0..d2a302b8 100644
--- a/project/templates/blocks/header.html
+++ b/project/templates/blocks/header.html
@@ -64,10 +64,6 @@
           <div class="header__group">
             <a class="header__section" href="https://blog.lil.school">БЛОГ</a>
           </div>
-          <div class="header__group">
-            <a class="header__section {% active_link 'gift-certificates' %}"
-               href="{% url 'gift-certificates' %}">СЕРТИФИКАТЫ</a>
-          </div>
         </nav>
       </div>
       {% include 'templates/blocks/user_menu.html' %}
diff --git a/project/templates/blocks/online_school.html b/project/templates/blocks/online_school.html
index 777baebe..b0d720ca 100644
--- a/project/templates/blocks/online_school.html
+++ b/project/templates/blocks/online_school.html
@@ -5,15 +5,15 @@
     <div class="school school_main school_three-col">
       <div class="school__col">
         <div class="school__preview">Видеоуроки</div>
-        <div class="school__text">Каждый день!</div>
+        <div class="school__text">каждый день!</div>
       </div>
       <div class="school__col">
         <div class="school__preview">5 дисциплин</div>
-        <div class="school__text">В разных техниках</div>
+        <div class="school__text">в разных техниках</div>
       </div>
       <div class="school__col">
         <div class="school__preview">Запись эфира</div>
-        <div class="school__text">Хранится 7 дней</div>
+        <div class="school__text">хранится 7 дней</div>
       </div>
     </div>
     <div style="margin: 50px 0px 15px; text-align: center;">
diff --git a/web/src/sass/_common.sass b/web/src/sass/_common.sass
index 56951b4d..2b362379 100755
--- a/web/src/sass/_common.sass
+++ b/web/src/sass/_common.sass
@@ -217,6 +217,9 @@ button
     background: none
     border: 1px solid $cl
     color: $cl
+  &_stroke-green
+    border: solid 1px #7ed321
+    background: none
   &_pink-blue
     background-image: linear-gradient(100deg, #8febff, #ffa2cb)
   &_disabled
@@ -443,8 +446,8 @@ a.btn
     visibility: visible
   &__section
     display: block
-    height: 100px
-    margin: 0 15px
+    height: 90px
+    margin: -10px 15px 0
     border-bottom: 1px solid transparent
     +fb
     font-size: 12px
@@ -4650,7 +4653,7 @@ a
       height: 260px
       flex-direction: column
   &__text
-    font-size: 30px
+    font-size: 28px
     text-shadow: none
     color: black
     +t
@@ -4664,7 +4667,7 @@ a
     text-shadow: none
     background: white
     padding: 12px 22px
-    border-radius: 25px
+    border-radius: 10px
     border: 1px solid #ddd
     text-align: center
     margin-top: 50px