diff --git a/tasks/1.html b/tasks/1.html
index 62be4d7..cd9e533 100755
--- a/tasks/1.html
+++ b/tasks/1.html
@@ -13,7 +13,17 @@ <h1 class="global-heading">&nbsp;</h1>
         <main class="global-results">
             <section class="global-result">
                 <style>
-                    /* ваш код здесь... */
+                    div, aside {
+                        background-color: #6698ff;
+                    }
+
+                    .c1 {
+                        background-color: #ff6698;
+                    }
+                    
+                    #id {
+                        background-color: #98ff66;
+                    }
                 </style>
 
                 <article class="global-scope">
diff --git a/tasks/10.html b/tasks/10.html
index d4510fa..95f73e7 100755
--- a/tasks/10.html
+++ b/tasks/10.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                .title::first-letter{
+                    color: #ff6698;
+                }
+                
+                .description::first-line{
+                    color: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/11.html b/tasks/11.html
index 7cbdc68..5fbcd07 100755
--- a/tasks/11.html
+++ b/tasks/11.html
@@ -12,7 +12,17 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                input:nth-child(1){
+                    border: 3px solid #ff6698;
+                }
+
+                input:nth-child(2){
+                    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..7d7bf19 100755
--- a/tasks/12.html
+++ b/tasks/12.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div:empty {
+                    background-color: #ffff66;
+                }
+                
+                div {
+                    background-color: #ffb366;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/13.html b/tasks/13.html
index d9e3f6e..9cc9799 100755
--- a/tasks/13.html
+++ b/tasks/13.html
@@ -12,7 +12,17 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div:nth-child(1) div:first-child {
+                    background-color: #ff6698;
+                }
+
+                div:nth-child(5) div:first-child {
+                    background-color: #ff6698;
+                }
+                
+                div:nth-child(9) div:first-child {
+                    background-color: #ff6698;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/14.html b/tasks/14.html
index 980a2a5..12d05f7 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... */
+                ul>:before {
+                    content: "+ ";
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/15.html b/tasks/15.html
index 705eeee..8205cee 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... */
+                [href$=".zip"]:after {
+                  content: ' \2193';
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/16.html b/tasks/16.html
index eb614cc..b92a21b 100755
--- a/tasks/16.html
+++ b/tasks/16.html
@@ -12,7 +12,21 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div:empty {
+                    background-color: #ff6698;
+                }
+
+                div.c1 {
+                    background-color: #6698ff;
+                }
+
+                #id1 {
+                    background-color: #ffb366;
+                }
+
+                div.c7 {
+                    background-color: #ffff66!important;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/17.html b/tasks/17.html
index c973a48..9558aa5 100755
--- a/tasks/17.html
+++ b/tasks/17.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                input:checked ~ input {
+                    outline: 1px solid #ff6698;
+                }
+                
+                input:checked  {
+                    outline: none!important;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/18.html b/tasks/18.html
index 2634da4..2a5e6af 100755
--- a/tasks/18.html
+++ b/tasks/18.html
@@ -12,7 +12,17 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div{
+                    opacity: 0.5;
+                }
+
+                article:hover > div{
+                    opacity: 0.2;
+                }
+                
+                article div:hover {
+                    opacity: 1;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/19.html b/tasks/19.html
index 3af53a6..82e03f1 100755
--- a/tasks/19.html
+++ b/tasks/19.html
@@ -12,7 +12,29 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                article div {
+                    background-color: #ffb366;
+                }
+
+                div div {
+                    background-color: #fff;
+                }
+
+                div:first-child div:last-child {
+                    background-color: #98ff66;
+                }
+
+                div:nth-child(2) div:nth-child(2n) {
+                    background-color:#ff6698;
+                }
+
+                div:nth-child(3) div:nth-child(2n-1) {
+                    background-color: #6698ff;
+                }
+                
+                div:last-child div:first-child {
+                    background-color: #ffff66;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/2.html b/tasks/2.html
index 27ecc28..0997534 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... */
+                .c1 {
+                    border: 2px solid #000;
+                    background-color: #ff6698;
+                }
+
+                .c1.c2 {
+                    background-color: #6698ff;
+                }
+
+                .c2 {
+                    background-color: #ffb366;
+                
             </style>
 
             <section class="global-result">
diff --git a/tasks/20.html b/tasks/20.html
index 07a5869..3c286e4 100755
--- a/tasks/20.html
+++ b/tasks/20.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                .red-gt2:nth-child(n+3) div {
+                    background-color: #ff6698;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/3.html b/tasks/3.html
index c652179..d3e7a85 100755
--- a/tasks/3.html
+++ b/tasks/3.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                div:not(:empty) {
+                    border: 2px solid #000;
+                }
+
+                div div{
+                    background-color: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/4.html b/tasks/4.html
index b367da7..37d3813 100755
--- a/tasks/4.html
+++ b/tasks/4.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                article:not(:first-of-type){
+                    border-top: 1px solid #000;
+                }
+                
+                article hr {
+                    border-top: 1px solid #0000;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/5.html b/tasks/5.html
index 98f61c4..3cf7a0c 100755
--- a/tasks/5.html
+++ b/tasks/5.html
@@ -12,7 +12,10 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                #checkbox:checked ~.tab {
+                    background-color: black;
+                    color: white;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/6.html b/tasks/6.html
index 059db07..434137e 100755
--- a/tasks/6.html
+++ b/tasks/6.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                section article a {
+                    color: #ff6698;
+                }
+
+                [href*="vk.ru"]{
+                    color: #6698ff;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/7.html b/tasks/7.html
index c3e1e50..83db4ea 100755
--- a/tasks/7.html
+++ b/tasks/7.html
@@ -12,7 +12,13 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                [alt*="css"] {
+                    opacity: 1;
+                }
+                
+                article img {
+                    opacity: 0.3;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/8.html b/tasks/8.html
index cd21aa6..dad08c1 100755
--- a/tasks/8.html
+++ b/tasks/8.html
@@ -12,7 +12,9 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                [target="_blank"] {
+                    color: #ff6698;
+                }
             </style>
 
             <section class="global-result">
diff --git a/tasks/9.html b/tasks/9.html
index 30ac7f8..dae3e93 100755
--- a/tasks/9.html
+++ b/tasks/9.html
@@ -12,7 +12,26 @@ <h1 class="global-heading">&nbsp;</h1>
 
         <main class="global-results">
             <style>
-                /* ваш код здесь... */
+                .link:hover {
+                    opacity: 0.5;
+                }
+                
+                [href*="https"]:hover {
+                    color: #ff6698;
+                    opacity: 1;
+                }
+
+                .link:active {
+                    opacity: 1;
+                }
+
+                [href*="https"]:active {
+                    color: #98ff66;
+                }
+
+                [href*="https"]:visited {
+                    color: #ffff66;
+                }
             </style>
 
             <section class="global-result">