diff --git a/src/components/molecules/FaleConosco/FaleConosco.module.scss b/src/components/molecules/FaleConosco/FaleConosco.module.scss
index 03a6f43..ceb316a 100644
--- a/src/components/molecules/FaleConosco/FaleConosco.module.scss
+++ b/src/components/molecules/FaleConosco/FaleConosco.module.scss
@@ -86,6 +86,7 @@
             border: 1px solid $color-black1;
             border-radius: 25px;
             width: calc(100% - 40px);
+            height: 31px;
             padding: 15px 20px;
             display: flex;
             align-items: center;
@@ -99,6 +100,7 @@
             color: $color-black;
 
             @media #{$mq-desktop}, #{$mq-tablet}, #{$mq-mobile} {
+                height: 14px;
                 font-size: 14px;
                 line-height: 16px;
             }
@@ -196,7 +198,7 @@
         align-items: center;
         justify-content: center;
         width: 100%;
-        height: 52px;
+        height: 71px;
         background-color: $color-black;
         border: none;
         border-radius: 25px;
@@ -204,12 +206,18 @@
         font-family: $font-family;
         font-style: normal;
         font-weight: 400;
-        font-size: 16px;
-        line-height: 19px;
+        font-size: 32px;
+        line-height: 38px;
         letter-spacing: 0.05em;
         text-transform: uppercase;
         cursor: pointer;
 
+        @media #{$mq-desktop}, #{$mq-tablet}, #{$mq-mobile} {
+            height: 52px;
+            font-size: 16px;
+            line-height: 19px;
+        }
+
         &:disabled{
             background-color: $color-black-500;
             cursor: inherit;
diff --git a/src/components/organisms/Footer/FooterNewsletter/FooterNewsletter.module.scss b/src/components/organisms/Footer/FooterNewsletter/FooterNewsletter.module.scss
index 4199ecd..2df8a24 100644
--- a/src/components/organisms/Footer/FooterNewsletter/FooterNewsletter.module.scss
+++ b/src/components/organisms/Footer/FooterNewsletter/FooterNewsletter.module.scss
@@ -62,7 +62,7 @@
 
         &__input {
             width: 71.72%;
-            height: 30px;
+            height: 33px;
             display: flex;
             flex-direction: row;
             align-items: flex-start;
@@ -74,7 +74,7 @@
             font-size: 28px;
             line-height: 33px;
             color: $color-black;
-            background: #FFFFFF;
+            background: $color-white;
             border: 1px solid $color-primary-600;
             border-radius: 4px;
 
@@ -89,7 +89,7 @@
                 font-size: 14px;
                 line-height: 16px;
                 padding: 17px 16px;
-                height: 16px;
+                height: 14px;
             }
 
             &::placeholder {
@@ -98,8 +98,6 @@
                 font-weight: 400;
                 font-size: 28px;
                 line-height: 33px;
-                font-size: 14px;
-                line-height: 16px;
                 color: $color-primary-400;
 
                 @media #{$mq-desktop}, #{$mq-tablet}, #{$mq-mobile} {
@@ -163,7 +161,7 @@
                 margin-top: 8px;
                 font-size: 14px;
                 line-height: 16px;
-                height: 44px;
+                height: 50px;
             }
         }
     }
diff --git a/src/components/organisms/Footer/FooterTop/FooterTop.scss b/src/components/organisms/Footer/FooterTop/FooterTop.scss
index 68b9373..47bbe07 100644
--- a/src/components/organisms/Footer/FooterTop/FooterTop.scss
+++ b/src/components/organisms/Footer/FooterTop/FooterTop.scss
@@ -29,6 +29,7 @@
         justify-content: flex-start;
         align-items: flex-start;
         margin-right: 121px;
+        width: 100%;
 
         @media #{$mq-tablet}, #{$mq-mobile} {
             margin: 0;
diff --git a/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.module.scss b/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.module.scss
index 1d0a096..6babd7a 100644
--- a/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.module.scss
+++ b/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.module.scss
@@ -111,6 +111,11 @@
         }
 
         &__cart {
+            background-color: transparent;
+            border: none;
+            display: contents;
+            cursor: pointer;
+
             img {
                 width: 28px;
                 height: 28px;
diff --git a/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.tsx b/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.tsx
index 7a23671..d75fbfb 100644
--- a/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.tsx
+++ b/src/components/organisms/Header/HeaderDesktop/HeaderDesktop.tsx
@@ -15,9 +15,15 @@ const HeaderDesktop = () => {
                     <a href="/" className={styles["header-top__log"]}>
                         ENTRAR
                     </a>
-                    <a href="/" className={styles["header-top__cart"]}>
+                    <button
+                        className={styles["header-top__cart"]}
+                        arial-label="Abrir Carrinho"
+                        onClick={() => {
+                            alert("Carrinho vazio!");
+                        }}
+                    >
                         <img src={cart} alt="Img do Carrinho" />
-                    </a>
+                    </button>
                 </div>
             </div>
             <div className={styles["header-bottom"]}>
diff --git a/src/components/organisms/Header/HeaderMobile/HeaderMobile.module.scss b/src/components/organisms/Header/HeaderMobile/HeaderMobile.module.scss
index 494021b..b203421 100644
--- a/src/components/organisms/Header/HeaderMobile/HeaderMobile.module.scss
+++ b/src/components/organisms/Header/HeaderMobile/HeaderMobile.module.scss
@@ -26,6 +26,17 @@
                 height: 22.5px;
             }
         }
+
+        &__icon-cart {
+            background-color: transparent;
+            border: none;
+            display: contents;
+
+            img {
+                width: 28px;
+                height: 28px;
+            }
+        }
     }
 
     &__input {
diff --git a/src/components/organisms/Header/HeaderMobile/HeaderMobile.tsx b/src/components/organisms/Header/HeaderMobile/HeaderMobile.tsx
index e7c5478..0935d5c 100644
--- a/src/components/organisms/Header/HeaderMobile/HeaderMobile.tsx
+++ b/src/components/organisms/Header/HeaderMobile/HeaderMobile.tsx
@@ -31,6 +31,7 @@ const HeaderMobile = () => {
                     <button
                         onClick={() => setMenuIsVisible(true)}
                         className={styles["header-mobile__top__icon-hamburger"]}
+                        arial-label="Abrir Menu"
                     >
                         <img src={hamburger} alt="Imagem Menu Hamburger" />
                     </button>
@@ -38,9 +39,15 @@ const HeaderMobile = () => {
                         <img src={logo} alt="Logo M3-ACADEMY" />
                     </a>
 
-                    <a href="/" className={styles["header-mobile__top__icons"]}>
+                    <button
+                        className={styles["header-mobile__top__icon-cart"]}
+                        arial-label="Abrir Carrinho"
+                        onClick={() => {
+                            alert("Carrinho vazio!");
+                        }}
+                    >
                         <img src={cart} alt="Img do Carrinho" />
-                    </a>
+                    </button>
                 </div>
                 <input placeholder="Buscar..." className={styles["header-mobile__input"]} />
                 <MenuMobile menuIsVisible={menuIsVisible} setMenuIsVisible={setMenuIsVisible} />
diff --git a/src/schema/FormSchema.ts b/src/schema/FormSchema.ts
index 529c7ba..92b6ab0 100644
--- a/src/schema/FormSchema.ts
+++ b/src/schema/FormSchema.ts
@@ -1,5 +1,6 @@
 import * as Yup from 'yup';
 import { cpf } from 'cpf-cnpj-validator';
+import { insta } from './validations';
 
 export default Yup.object().shape({
     name: Yup.string().required("*Campo Obrigatório").min(3, "*No mínimo 3 digitos"),
@@ -7,6 +8,6 @@ export default Yup.object().shape({
     cpf: Yup.string().test((value:any) => cpf.isValid(value)).required("*Campo Obrigatório"),
     birthDate: Yup.date().max(new Date(), "*Data inválida!").required("*Campo Obrigatório"),
     celPhone: Yup.string().required('*Campo Obrigatório'),
-    instagram: Yup.string(),
+    instagram: Yup.string().matches(insta, 'Usuário Inválido!'),
     acceptTerms: Yup.boolean().oneOf([true], '*'),
 })
diff --git a/src/schema/validations.ts b/src/schema/validations.ts
index 5f65aed..d69b959 100644
--- a/src/schema/validations.ts
+++ b/src/schema/validations.ts
@@ -1,3 +1,4 @@
 export const phoneNumber = /\([1-9]{2}\) 9[0-9]\d{3}-\d{4}/;
 export const cpfNumber = /^[0-9]{3}.?[0-9]{3}.?[0-9]{3}-?[0-9]{2}/;
+export const insta = /@(?:(?:[\w][.]{0,1})*[\w]){1,29}/;