React_markup/src/App.css

body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #727272;
}

html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

.wrapper {
  width: 100%;
  position: relative;
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: top;
}

p {
  /* margin-top: 0;
    margin-bottom: 20px; */
  margin: 0 0 20px 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: black;
  line-height: 1.15;
  font-weight: 500;
  margin-top: 0;
}

h1 {
  font-size: 35px;
}

h2 {
  font-size: 28px;
}

ul,
ol {
  padding-left: 0;
  margin: 0;
  list-style: none;
}

.header {
  background: #eeeff1;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

.header-wrap {
  display: flex;
  align-items: center;
  padding-top: 57px;
}

.logo {
  display: inline-block;
  max-width: 96px;
  max-height: 60px;
  margin-right: 15px;
}

.logo img {
  vertical-align: middle;
  min-width: 96px;
  min-height: 60px;
}

.nav {
  display: flex;
  justify-content: flex-end;
  flex-grow: 1;
}

/* BURGER */

.burger-checkbox {
  opacity: 0;
  visibility: hidden;
  position: absolute;
  left: -9999999px;
}

.burger {
  position: relative;
  width: 26px;
  height: 18px;
}

.burger::before,
.burger span,
.burger:after {
  position: absolute;
  right: 0;
  left: 0;
  background: #000;
  height: 2px;
}

.burger:before {
  content: "";
  top: 0;
}

.burger span {
  top: 8px;
}

.burger:after {
  content: "";
  bottom: 0;
}

.burger-checkbox:checked+.burger span {
  opacity: 0;
}

.burger-checkbox:checked+.burger::before {
  transition: transform 0.3s ease-in;
  transform: rotate(45deg);
  top: 8px;
}

.burger-checkbox:checked+.burger::after {
  transition: transform 0.3s ease-in;
  transform: rotate(-45deg);
  bottom: 8px;
}

.burger-checkbox:checked~.header-list {
  transition: opacity .3s ease-in;
  opacity: 1;
  visibility: visible;
  z-index: 1;
}


.header-list {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  text-align: center;
  background: #eeeff1;
  opacity: 0;
  visibility: hidden;
}

.header-item {
  padding-bottom: 15px;
}

.header-item a {
  color: black;
  text-decoration: none;
  margin-left: 42px;
  transition: transform 0.3s ease-in;
}

.header-item a:hover {
  opacity: 0.8;
  color: #34547A;
}

/* section banner */

.btn {
  display: inline-block;
  border: 1px solid #34547A;
  background: #34547A;
  color: #fff;
  text-transform: uppercase;
  padding: 15px 25px;
  line-height: 1;
  text-decoration: none;
}

.btn:hover {
  transition: opacity 0.3s ease-in;
  opacity: 0.7;
  cursor: pointer;
}

.container {
  max-width: 1180px;
  padding: 0 15px;
  margin: 0 auto;
}

.section-banner {
  background: #eeeff1;
  padding: 170px 0 50px;
  width: 100%;
}

.banner-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 -65px;
}

.col {
  padding: 0 65px;
  width: 50%;
}


.col--img {
  display: flex;
  justify-content: center;
  padding-bottom: 50px;
  width: 100%;
}

.col--description {
  width: 100%;
  text-align: center;
}

.section-banner .title {
  margin-bottom: 60px;
  text-align: center;
}

.section-banner .holder {
  padding-bottom: 40px;
}

.section-about-me {
  padding-bottom: 50px;
  padding-top: 50px;
}

.about-me-header {
  text-align: center;

}

.about-me-text {
  max-width: 540px;
  text-align: center;
  margin: 0 auto 0;
}

/* section project */

.section-projects {
  background-color: #34547A;
  padding: 50px 0;
}

.projects-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 -7px;
}

.project-col {
  display: flex;
  padding: 0 7px 14px;
}

.project-image {
  padding-right: 20px;
}

.project-description {
  display: flex;
  flex-direction: column;
  justify-content: left;
  width: calc(100% - 70px);
  color: #fff;
}

.project-description p {
  margin: 0;
  text-align: left;
}

.project-description p:first-child {
  font-size: 21px;
  font-weight: 500;
  margin-top: 0px;
  vertical-align: top;
}

.section-skill {
  padding: 50px 0;
}

.skill-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.skill-col {
  width: 100%;
}

.skill-descr {
  padding-right: 20px;
}

.skill-descr h2 {
  text-align: center;
}

.skill-img {
  background: url(image/men_photo.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  padding-top: 70%;
}

.skill-descr .title {
  margin-bottom: 50px;
}

.skill-box {
  min-width: 100%;
}

.skill-this {
  margin-bottom: 30px;
}

.skill-label {
  display: block;
  margin-bottom: 20px;
}

.skill-loader {
  background: #c4c4c4;
  height: 4px;
  position: relative;

}

.skill-load {
  background: #34547A;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
}

/* video */

.section-video {
  background-color: #EEEFF1;
  padding: 50px 0 0 0;
}

.video-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header-video {
  text-align: center;
}

.video-text {
  width: 540px;
  height: 67px;
  text-align: center;
  position: relative;
}

.video-text p {
  margin: 0;
  width: 540px;
  height: 67px;
  text-align: center;
}

.video-img {
  position: relative;
}

.video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* gallery */

.section-gallery {
  padding-top: 28px;
}

.section-gallery .row {
  display: flex;
  flex-wrap: wrap;
}

.section-gallery .col {
  width: 50%;
  padding-top: 50%;
  background-size: cover;
  background-position: center;
  position: relative;
}

.row a:nth-child(1) {
  order: 1;
}

.row a:nth-child(2) {
  order: 2;
}

.row a:nth-child(3) {
  order: 4;
}

.row a:nth-child(4) {
  order: 3;
}

.row a:nth-child(5) {
  order: 6;
}

.row a:nth-child(6) {
  order: 5;
}

.row a:nth-child(7) {
  order: 7;
}

.row a:nth-child(8) {
  order: 8;
}



.section-gallery .col:hover::before,
.section-gallery .col:hover::after {
  transition: opacity 0.3s ease-in;
  opacity: 1;
  visibility: visible;
}


.section-gallery .col::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(52, 84, 122, 0.8);
  opacity: 0;
  visibility: hidden;
}

.section-gallery .col::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: url(image/oko.svg) no-repeat;
  background-size: cover;
  background-position: center;
  width: 100px;
  height: 58px;
  opacity: 0;
  visibility: hidden;
}

/* Microsoft */

.section-microsoft {
  padding: 50px 0;
}

.microsoft-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin-left: -30px;
}

.microsoft-img {
  margin-left: 30px;
}

/* Form section */

.section-form {
  background: #EEEFF1;
  display: block;
  padding: 50px 0;
}

.form-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.form {
  max-width: 540px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* .form-header {
    text-align: center;
    padding-bottom: 34px;
}

.form-text{
    width: 540px;
    height: 67px;
    text-align: center;
} */

.form input {
  width: 255px;
  height: 50px;
  border: none;
  padding: 17px 20px 18px 20px;
  outline: 0;
}

.form input [placeholder] {
  font-size: 50px;
}

.form input::placeholder,
.form textarea::placeholder {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-size: 14px;
  line-height: 23px;
  color: #5F5D5D;
}

.form-contacts {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-top: 45px;
}

.form-message {
  max-width: 540px;
  height: 175px;
  border: none;
  padding: 17px 20px 0 20px;
  resize: none;
  border: none;
  margin-bottom: 50px;
  outline: 0;
}

.form-btn {
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-form .btn {
  padding: 15px 30px;
}

/* Footer */

.footer {
  background: #34547A;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.footer-contacts {
  display: flex;
  flex-direction: column;
  justify-content: left;
  color: #fff;
  padding: 50px 0 30px 0;

}

.footer-contacts p {
  margin: 0;
  padding-bottom: 20px;
  line-height: 1;
  font-size: 13px;
}

.footer-contacts p:first-child {
  font-size: 21px;
}

.social-networks {
  display: flex;
  align-items: center;
}

.social-networks a {
  padding-right: 22px;
}

@media (min-width: 576px) {
  .section-form {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 32px;
  }

  .burger {
    display: none;
  }


  .header-list {
    position: static;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    visibility: visible;
  }

  .header-item {
    padding-bottom: 0px;
  }

  .btn {
    padding: 23px 50px;
  }

  .col {
    padding: 0 65px;
    width: 50%;
  }

  .col--img {
    justify-content: flex-end;
  }

  .col--description p {
    text-align: left;
  }

  .section-banner {
    background: #eeeff1;
    padding: 257px 0 146px;
    width: 100%;
  }

  .banner-wrap {
    display: flex;
    align-items: center;
    margin: 0 -65px;
    flex-direction: row;
  }

  .section-about-me {
    padding-bottom: 100px;
    padding-top: 119px;
  }

  .section-projects {
    padding: 100px 0;
  }

  .project-description {
    width: calc(100% - 70px);
  }

  .section-skill {
    padding: 100px 0;
  }

  .skill-col {
    width: 50%;
  }

  .skill-descr h2 {
    text-align: left;
  }

  .skill-box {
    min-width: 445px;
  }

  .skill-img {
    padding-top: 34.6%;
  }

  .video-img {
    margin: 57px 35px 100px 35px;
  }

  .section-microsoft {
    padding-top: 72px;
    padding-bottom: 100px;
  }

  .section-video {
    padding: 100px 0 0 0;
  }

  .section-form {
    padding: 100px 0 100px 0;
  }

  .section-form .btn {
    padding: 18.5px 48px;
  }

  .section-gallery .col {
    width: 25%;
    padding-top: 25%;
    background-size: cover;
    background-position: center;
    position: relative;
  }

  .row a:nth-child(1) {
    order: 1;
  }

  .row a:nth-child(2) {
    order: 1;
  }

  .row a:nth-child(3) {
    order: 1;
  }

  .row a:nth-child(4) {
    order: 1;
  }

  .row a:nth-child(5) {
    order: 1;
  }

  .row a:nth-child(6) {
    order: 1;
  }

  .row a:nth-child(7) {
    order: 1;
  }

  .row a:nth-child(8) {
    order: 1;
  }

}



@media (min-width: 768px) {}

@media (max-width: 575px) {
  .form-wrap {
    width: 100%;
  }

  .form input {
    width: 100%;
    margin-bottom: 10px;
  }


}

@media (max-width: 430px) {

  .social-networks a {
    padding: 0 22px 20px 0;
  }

  .social-networks {
    margin-right: -22px;
  }

  .footer-contacts p {
    text-align: center;
  }

  .footer-wrap {
    justify-content: center;
  }

  .footer-contacts {
    justify-content: center;
  }
}