diff --git a/tasks/1.html b/tasks/1.html
index 62be4d7..2f63352 100755
--- a/tasks/1.html
+++ b/tasks/1.html
@@ -13,7 +13,18 @@ <h1 class="global-heading">&nbsp;</h1>
         <main class="global-results">
             <section class="global-result">
                 <style>
-                    /* ваш код здесь... */
+                    div {
+                        background: #6698ff;
+                    }
+                    div.c1 {
+                        background: #ff6698;
+                    }
+                    div#id {
+                        background: #98ff66;
+                    }
+                    aside {
+                        background: #6698ff;
+                    }
                 </style>
 
                 <article class="global-scope">
diff --git a/tasks/10.html b/tasks/10.html
index d4510fa..4e7a202 100755
--- a/tasks/10.html
+++ b/tasks/10.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                p.title:first-letter {
+                    color:red;
+                }
+                p.description:first-line {
+                    color: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/11.html b/tasks/11.html
index 7cbdc68..97d07c1 100755
--- a/tasks/11.html
+++ b/tasks/11.html
@@ -12,7 +12,15 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                input:invalid {
+                    border: 3px solid #ff6698;
+                }
+                input:valid {
+                    border: 3px solid #98ff66;
+                }
+                input:focus {
+                    border: 3px solid #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/12.html b/tasks/12.html
index df47ce3..51d4da4 100755
--- a/tasks/12.html
+++ b/tasks/12.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div:nth-child(odd):not(:nth-of-type(5)) {
+                    background: #ffb366;
+                }
+                div {
+                    background: #ffff66;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/13.html b/tasks/13.html
index d9e3f6e..fd88044 100755
--- a/tasks/13.html
+++ b/tasks/13.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div div:only-of-type {
+                    background: #ff6698;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/14.html b/tasks/14.html
index 980a2a5..f7cf424 100755
--- a/tasks/14.html
+++ b/tasks/14.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                li::before {
+                    content: '+ ';
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/15.html b/tasks/15.html
index 705eeee..7322c26 100755
--- a/tasks/15.html
+++ b/tasks/15.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                a[href$=".zip"][download]::after {
+                  content: '\2193';
+                } 
             </style>
 
             <section class="global-result">
diff --git a/tasks/16.html b/tasks/16.html
index eb614cc..aa4d2f5 100755
--- a/tasks/16.html
+++ b/tasks/16.html
@@ -12,9 +12,21 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
-            </style>
+                div:first-child {
+                    background-color: #ff6698;
+                }
+                div.c1 {
+                    background-color: #6698ff;
+                }
+                div#id1 {
+                    background-color: #ffb366;
+                }
+                div.c7 {
+                    background-color: #ffff66 !important;
+                }
 
+            </style>
+                
             <section class="global-result">
                 <article class="global-scope">
                     <div></div>
diff --git a/tasks/17.html b/tasks/17.html
index c973a48..1af8cca 100755
--- a/tasks/17.html
+++ b/tasks/17.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                input[type="checkbox"]:checked ~ input[type="checkbox"] {
+                    outline: 1px solid #ff6698;
+                }
+                input[type="checkbox"]:checked {
+                    outline: 0px!important;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/18.html b/tasks/18.html
index 2634da4..7122d39 100755
--- a/tasks/18.html
+++ b/tasks/18.html
@@ -12,7 +12,15 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div {
+                    opacity: 0.5;
+                }
+                article:hover div {
+                    opacity: 0.3;
+                }
+                div:hover {
+                    opacity: 1!important;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/19.html b/tasks/19.html
index 3af53a6..a76b52e 100755
--- a/tasks/19.html
+++ b/tasks/19.html
@@ -12,7 +12,24 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div {
+                    background: #ffb366;
+                }
+                div > div {
+                    background: #ffffff;
+                }
+                div:first-child > div:last-child {
+                    background: #98ff66;
+                }
+                div:nth-child(2) > div:nth-child(2n) {
+                    background: #ff6698;
+                }
+                div:nth-last-child(2)  > div:nth-child(2n-1) {
+                    background: #6698ff;
+                }
+                div:last-child > div:first-child {
+                    background: #ffff66;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/2 variant 2.html b/tasks/2 variant 2.html
new file mode 100644
index 0000000..d38076e
--- /dev/null
+++ b/tasks/2 variant 2.html	
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>CSS-селекторы</title>
+        <meta charset="utf-8">
+
+        <link rel="stylesheet" type="text/css" href="../global.css">
+    </head>
+    <body>
+        <h1 class="global-heading">&nbsp;</h1>
+        <p>Решите задачу, используя <code>background: &lt;color&gt;</code> и <code>border: 2px solid #000</code></p>
+
+        <main class="global-results">
+            <style>
+                div.c1 {
+                    border: 2px solid #000;
+                    background: #ff6698;
+                }
+                div.c2 {
+                    background: #ffb366;
+                }
+                div.c1.c2 {
+                    background: #6698ff;
+                }
+            </style>
+
+            <section class="global-result">
+                <article class="global-scope">
+                    <div class="c1 c2"></div>
+                    <div class="c1"></div>
+                    <div class="c2"></div>
+                    <div class="c1"></div>
+                </article>
+            </section>
+
+            <section class="global-result">
+                <img class="global-goal">
+            </section>
+        </main>
+
+        <nav class="global-nav">
+            <a class="global-prev">Предыдущее</a>
+            <a class="global-next">Следующее</a>
+        </nav>
+
+        <script src="../global.js"></script>
+    </body>
+</html>
diff --git a/tasks/2.html b/tasks/2.html
index 27ecc28..27eaa6a 100755
--- a/tasks/2.html
+++ b/tasks/2.html
@@ -12,7 +12,18 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div {
+                    background: #ff6698;
+                }
+                div.c1 {
+                    border: 2px solid #000;
+                }
+                div.c2 {
+                    background: #ffb366;
+                }
+                div.c1.c2 {
+                    background: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/20.html b/tasks/20.html
index 07a5869..d815a95 100755
--- a/tasks/20.html
+++ b/tasks/20.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                /*самая сильная магия, под-вид магии - мощный, 
+                честно спер, но разобрался*/
+                .red-gt2 div:nth-last-child(n+3),
+                .red-gt2 div:nth-last-child(n+3)~div {
+                    background: #ff6698; 
+                }                
             </style>
 
             <section class="global-result">
diff --git a/tasks/3.html b/tasks/3.html
index c652179..6094687 100755
--- a/tasks/3.html
+++ b/tasks/3.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                article > div {
+                    border: 2px solid #000;
+                }
+                div div {
+                    background: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/4.html b/tasks/4.html
index b367da7..b753c4b 100755
--- a/tasks/4.html
+++ b/tasks/4.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                article:nth-of-type(n+2) {
+                    border-top: 1px solid #000
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/5.html b/tasks/5.html
index 98f61c4..5552455 100755
--- a/tasks/5.html
+++ b/tasks/5.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                /* так же не понял, нужно ли менять цвет внутри самого чек-бокса, посмотрел что через :after и display: none 
+                 подумал что для 5 задания это перебор. Если точно надо то сделаю*/
+                input:checked ~ div {   
+                    background: black;
+                    color: white
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/6.html b/tasks/6.html
index 059db07..d93e888 100755
--- a/tasks/6.html
+++ b/tasks/6.html
@@ -11,8 +11,16 @@ <h1 class="global-heading">&nbsp;</h1>
         <p>Решите задачу, используя <code>color: &lt;color&gt;</code></p>
 
         <main class="global-results">
-            <style>
-                /* ваш код здесь... */
+            <style>                
+                a:link {
+                    color: #ff6698;
+                }
+                a:visited {
+                    color: #ff6698;
+                }
+                a[href="https://vk.ru"] {
+                    color: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/7.html b/tasks/7.html
index c3e1e50..411e48e 100755
--- a/tasks/7.html
+++ b/tasks/7.html
@@ -12,7 +12,12 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                img:not([alt^="css"]) {
+                    opacity: 0.3;
+                }
+                img.global-goal {
+                    opacity: 1;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/8.html b/tasks/8.html
index cd21aa6..b2db72e 100755
--- a/tasks/8.html
+++ b/tasks/8.html
@@ -12,7 +12,10 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                /* выделять по target="_blank" расценил как поддаться на провокацию */                                  
+                 a[href*="//"]:not([href*="my-site.ru"]){
+                     color:#FF679A;
+                 }
             </style>
 
             <section class="global-result">
diff --git a/tasks/9.html b/tasks/9.html
index 30ac7f8..d2c8fab 100755
--- a/tasks/9.html
+++ b/tasks/9.html
@@ -12,7 +12,19 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                a[href]:visited {
+                    color: #ffb366;
+                }
+                a[href]:hover {
+                    color: #ff6698;
+                    opacity: 1;
+                }
+                a[href]:active {
+                    color: #98ff66;
+                }
+                a:hover {
+                    opacity: 0.4;
+                }                        
             </style>
 
             <section class="global-result">