project-style.css

*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #1f1f1f;
  font-family: 'Open Sans', Helvetica, Arial, sans-serif;
}

.cont {
  position: relative;
  overflow: hidden;
  height: 100vh;
  padding-left: 70px;
  padding-right: 70px;
  padding-top: 20px;
  padding-bottom: 70px;
}
.cont__inner {
  position: relative;
  height: 100%;
}
.cont__inner:hover .el__bg:after {
  opacity: 1;
}

.el {
  position: absolute;
  left: 0;
  top: 0;
  width: 19.2%;
  height: 100%;
  background: #252525;
  -webkit-transition: width 0.7s, opacity 0.6s 0.7s, z-index 0s 1.3s, -webkit-transform 0.6s 0.7s;
  transition: width 0.7s, opacity 0.6s 0.7s, z-index 0s 1.3s, -webkit-transform 0.6s 0.7s;
  transition: transform 0.6s 0.7s, width 0.7s, opacity 0.6s 0.7s, z-index 0s 1.3s;
  transition: transform 0.6s 0.7s, width 0.7s, opacity 0.6s 0.7s, z-index 0s 1.3s, -webkit-transform 0.6s 0.7s;
  will-change: transform, width, opacity;
}
.el:not(.s--active) {
  cursor: pointer;
}
.el__overflow {
  overflow: hidden;
  position: relative;
  height: 100%;
}
.el__inner {
  overflow: hidden;
  position: relative;
  height: 100%;
  -webkit-transition: -webkit-transform 1s;
  transition: -webkit-transform 1s;
  transition: transform 1s;
  transition: transform 1s, -webkit-transform 1s;
}
.cont.s--inactive .el__inner {
  -webkit-transform: translate3d(0, 100%, 0);
          transform: translate3d(0, 100%, 0);
}
.el__bg {
  position: relative;
  width: calc(100vw - 140px);
  height: 100%;
  -webkit-transition: -webkit-transform 0.6s 0.7s;
  transition: -webkit-transform 0.6s 0.7s;
  transition: transform 0.6s 0.7s;
  transition: transform 0.6s 0.7s, -webkit-transform 0.6s 0.7s;
  will-change: transform;
}
.el__bg:before {
  content: "";
  position: absolute;
  left: 0;
  top: -5%;
  width: 100%;
  height: 110%;
  background-size: cover;
  background-position: center center;
  -webkit-transition: -webkit-transform 1s;
  transition: -webkit-transform 1s;
  transition: transform 1s;
  transition: transform 1s, -webkit-transform 1s;
  -webkit-transform: translate3d(0, 0, 0) scale(1);
          transform: translate3d(0, 0, 0) scale(1);
}
.cont.s--inactive .el__bg:before {
  -webkit-transform: translate3d(0, -100%, 0) scale(1.2);
          transform: translate3d(0, -100%, 0) scale(1.2);
}
.el.s--active .el__bg:before {
  -webkit-transition: -webkit-transform 0.8s;
  transition: -webkit-transform 0.8s;
  transition: transform 0.8s;
  transition: transform 0.8s, -webkit-transform 0.8s;
}
.el__bg:after {
  content: "";
  z-index: 1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  -webkit-transition: opacity 0.5s;
  transition: opacity 1s;
}
.cont.s--el-active .el__bg:after {
  -webkit-transition: opacity 0.5s 1.4s;
  transition: opacity 0.5s 1.4s;
  opacity: 1 !important;
}
.el__preview-cont {
  z-index: 2;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  -webkit-transition: all 0.3s 1.2s;
  transition: all 0.3s 1.2s;
}
.cont.s--inactive .el__preview-cont {
  opacity: 0;
  -webkit-transform: translateY(10px);
          transform: translateY(10px);
}
.cont.s--el-active .el__preview-cont {
  opacity: 0;
  -webkit-transform: translateY(30px);
          transform: translateY(30px);
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.el__heading {
  color:whitesmoke;
  text-transform: uppercase;
  font-size: 20px;
  text-shadow: 00.05em 0 black,
  0 0.05em black,
  -0.05em 0 black,
  0 -0.05em black,
  -0.05em -0.05em black,
  -0.05em 0.05em black,
  0.05em -0.05em black,
  0.05em 0.05em black;
}
.el__content {
  z-index: -1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  padding: 30px;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
  color:#fff;
}
.el.s--active .el__content {
  z-index: 2;
  opacity: 1;
  pointer-events: auto;
  -webkit-transition: all 0.5s 1.4s;
  transition: all 0.5s 1.4s;
}
.el__text {
  text-transform: uppercase;
  font-size: 40px;
  color: #fff;
  padding-left: 30px;
}

.para{
padding-top: 10px;
padding-bottom: 10px;
padding-left: 30px;
padding-right: 30px;
font-size: large;
}

.el__close-btn {
  z-index: -1;
  position: absolute;
  right: 10px;
  top: 10px;
  width: 60px;
  height: 60px;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: all 0s 0.45s;
  transition: all 0s 0.45s;
  cursor: pointer;
}
.el.s--active .el__close-btn {
  z-index: 5;
  opacity: 1;
  pointer-events: auto;
  -webkit-transition: all 0s 1.4s;
  transition: all 0s 1.4s;
}
.el__close-btn:before, .el__close-btn:after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 8px;
  margin-top: -4px;
  background: #fff;
  opacity: 0;
  -webkit-transition: opacity 0s;
  transition: opacity 0s;
}
.el.s--active .el__close-btn:before, .el.s--active .el__close-btn:after {
  opacity: 1;
}
.el__close-btn:before {
  -webkit-transform: rotate(45deg) translateX(100%);
          transform: rotate(45deg) translateX(100%);
}
.el.s--active .el__close-btn:before {
  -webkit-transition: all 0.3s 1.4s cubic-bezier(0.72, 0.09, 0.32, 1.57);
  transition: all 0.3s 1.4s cubic-bezier(0.72, 0.09, 0.32, 1.57);
  -webkit-transform: rotate(45deg) translateX(0);
          transform: rotate(45deg) translateX(0);
}
.el__close-btn:after {
  -webkit-transform: rotate(-45deg) translateX(100%);
          transform: rotate(-45deg) translateX(100%);
}
.el.s--active .el__close-btn:after {
  -webkit-transition: all 0.3s 1.55s cubic-bezier(0.72, 0.09, 0.32, 1.57);
  transition: all 0.3s 1.55s cubic-bezier(0.72, 0.09, 0.32, 1.57);
  -webkit-transform: rotate(-45deg) translateX(0);
          transform: rotate(-45deg) translateX(0);
}
.el__index {
  overflow: hidden;
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 100%;
  min-height: 250px;
  text-align: center;
  font-size: 20vw;
  line-height: 0.85;
  font-weight: bold;
  -webkit-transition: opacity 0.3s 1.4s, -webkit-transform 0.5s;
  transition: opacity 0.3s 1.4s, -webkit-transform 0.5s;
  transition: transform 0.5s, opacity 0.3s 1.4s;
  transition: transform 0.5s, opacity 0.3s 1.4s, -webkit-transform 0.5s;
  -webkit-transform: translate3d(0, 1vw, 0);
          transform: translate3d(0, 1vw, 0);
}
.el:hover .el__index {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
}
.cont.s--el-active .el__index {
  -webkit-transition: opacity 0.3s, -webkit-transform 0.5s;
  transition: opacity 0.3s, -webkit-transform 0.5s;
  transition: transform 0.5s, opacity 0.3s;
  transition: transform 0.5s, opacity 0.3s, -webkit-transform 0.5s;
  opacity: 0;
}
.el__index-back, .el__index-front {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
}
.el__index-back {
  color: #1e3346;
  opacity: 0;
  -webkit-transition: opacity 0.25s 0.25s;
  transition: opacity 0.25s 0.25s;
}
.el:hover .el__index-back {
  -webkit-transition: opacity 0.25s;
  transition: opacity 0.25s;
  opacity: 1;
}
.el__index-overlay {
  overflow: hidden;
  position: relative;
  -webkit-transform: translate3d(0, 100%, 0);
          transform: translate3d(0, 100%, 0);
  -webkit-transition: -webkit-transform 0.5s 0.1s;
  transition: -webkit-transform 0.5s 0.1s;
  transition: transform 0.5s 0.1s;
  transition: transform 0.5s 0.1s, -webkit-transform 0.5s 0.1s;
  color: transparent;
}
.el__index-overlay:before {
  content: attr(data-index);
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  -webkit-transform: translate3d(0, -100%, 0);
          transform: translate3d(0, -100%, 0);
  -webkit-transition: -webkit-transform 0.5s 0.1s;
  transition: -webkit-transform 0.5s 0.1s;
  transition: transform 0.5s 0.1s;
  transition: transform 0.5s 0.1s, -webkit-transform 0.5s 0.1s;
}
.el:hover .el__index-overlay {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
}
.el:hover .el__index-overlay:before {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
}
.el:nth-child(1) {
  -webkit-transform: translate3d(0%, 0, 0);
          transform: translate3d(0%, 0, 0);
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
}
.cont.s--el-active .el:nth-child(1):not(.s--active) {
  -webkit-transform: scale(0.5) translate3d(0%, 0, -15%);
          transform: scale(0.5) translate3d(0%, 0, -15%);
  opacity: 0;
  -webkit-transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: transform 0.95s, opacity 0.95s;
  transition: transform 0.95s, opacity 0.95s, -webkit-transform 0.95s;
}
.el:nth-child(1) .el__inner {
  -webkit-transition-delay: 0s;
          transition-delay: 0s;
}
.el:nth-child(1) .el__bg {
  -webkit-transform: translate3d(0%, 0, -15%);
          transform: translate3d(0%, 0, -15%);
}
.el:nth-child(1) .el__bg:before {
  -webkit-transition-delay: 0s;
          transition-delay: 0s;
  background-image: url("https://images.unsplash.com/photo-1531030874896-fdef6826f2f7?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9https://images.unsplash.com/photo-1515879218367-8466d910aaa4?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9");
}
.el:nth-child(2) {
  -webkit-transform: translate3d(105.2083333333%, 0, 0);
          transform: translate3d(105.2083333333%, 0, 0);
  -webkit-transform-origin: 155.2083333333% 50%;
          transform-origin: 155.2083333333% 50%;
}
.cont.s--el-active .el:nth-child(2):not(.s--active) {
  -webkit-transform: scale(0.5) translate3d(105.2083333333%, 0, 0);
          transform: scale(0.5) translate3d(105.2083333333%, 0, 0);
  opacity: 0;
  -webkit-transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: transform 0.95s, opacity 0.95s;
  transition: transform 0.95s, opacity 0.95s, -webkit-transform 0.95s;
}
.el:nth-child(2) .el__inner {
  -webkit-transition-delay: 0.1s;
          transition-delay: 0.1s;
}
.el:nth-child(2) .el__bg {
  -webkit-transform: translate3d(-53%, -5%, 0);
          transform: translate3d(-53%, -5%,0);
}
.el:nth-child(2) .el__bg:before {
  -webkit-transition-delay: 0.1s;
          transition-delay: 0.1s;
  background-image: url("https://images.unsplash.com/photo-1561115867-be8460fbebfe?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9");
}
.el:nth-child(3) {
  -webkit-transform: translate3d(210.4166666667%, 0, 0);
          transform: translate3d(210.4166666667%, 0, 0);
  -webkit-transform-origin: 260.4166666667% 50%;
          transform-origin: 260.4166666667% 50%;
}
.cont.s--el-active .el:nth-child(3):not(.s--active) {
  -webkit-transform: scale(0.5) translate3d(210.4166666667%, 0, 0);
          transform: scale(0.5) translate3d(210.4166666667%, 0, 0);
  opacity: 0;
  -webkit-transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: transform 0.95s, opacity 0.95s;
  transition: transform 0.95s, opacity 0.95s, -webkit-transform 0.95s;
}
.el:nth-child(3) .el__inner {
  -webkit-transition-delay: 0.2s;
          transition-delay: 0.2s;
}
.el:nth-child(3) .el__bg {
  -webkit-transform: translate3d(-70.4%, -2%, 0);
          transform: translate3d(-70.4%, -2%, 0);
}
.el:nth-child(3) .el__bg:before {
  -webkit-transition-delay: 0.2s;
          transition-delay: 0.2s;
  background-image: url(https://images.unsplash.com/photo-1535378917042-10a22c95931a?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9);
  
}
.el:nth-child(4) {
  -webkit-transform: translate3d(315.625%, 0, 0);
          transform: translate3d(315.625%, 0, 0);
  -webkit-transform-origin: 365.625% 50%;
          transform-origin: 365.625% 50%;
}
.cont.s--el-active .el:nth-child(4):not(.s--active) {
  -webkit-transform: scale(0.5) translate3d(315.625%, 0, 0);
          transform: scale(0.5) translate3d(315.625%, 0, 0);
  opacity: 0;
  -webkit-transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: transform 0.95s, opacity 0.95s;
  transition: transform 0.95s, opacity 0.95s, -webkit-transform 0.95s;
}
.el:nth-child(4) .el__inner {
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
}
.el:nth-child(4) .el__bg {
  -webkit-transform: translate3d(-30.6%, 0, 0);
          transform: translate3d(-30.6%, 0, 0);
}
.el:nth-child(4) .el__bg:before {
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
  background-image: url("https://images.unsplash.com/photo-1492558647888-45b0d471e2c3?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9");
  
}
.el:nth-child(5) {
  -webkit-transform: translate3d(420.8333333333%, 0, 0);
          transform: translate3d(420.8333333333%, 0, 0);
  -webkit-transform-origin: 470.8333333333% 50%;
          transform-origin: 470.8333333333% 50%;
}
.cont.s--el-active .el:nth-child(5):not(.s--active) {
  -webkit-transform: scale(0.5) translate3d(420.8333333333%, 0, 0);
          transform: scale(0.5) translate3d(420.8333333333%, 0, 0);
  opacity: 0;
  -webkit-transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: opacity 0.95s, -webkit-transform 0.95s;
  transition: transform 0.95s, opacity 0.95s;
  transition: transform 0.95s, opacity 0.95s, -webkit-transform 0.95s;
}
.el:nth-child(5) .el__inner {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.el:nth-child(5) .el__bg {
  -webkit-transform: translate3d(-15.8%, 0, 0);
          transform: translate3d(-15.8%, 0, 0);
}
.el:nth-child(5) .el__bg:before {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
  background-image: url("https://images.unsplash.com/photo-1589295176854-7c28f048d875?ixlib=rb-1.2.1&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=1080&fit=max&ixid=eyJhcHBfaWQiOjF9");
  
  
}
.el:hover .el__bg:after {
  opacity: 0;
}
.el.s--active {
  z-index: 1;
  width: 100%;
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  -webkit-transition: width 0.7s 0.7s, z-index 0s, -webkit-transform 0.6s;
  transition: width 0.7s 0.7s, z-index 0s, -webkit-transform 0.6s;
  transition: transform 0.6s, width 0.7s 0.7s, z-index 0s;
  transition: transform 0.6s, width 0.7s 0.7s, z-index 0s, -webkit-transform 0.6s;
}
.el.s--active .el__bg {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  -webkit-transition: -webkit-transform 0.6s;
  transition: -webkit-transform 0.6s;
  transition: transform 0.6s;
  transition: transform 0.6s, -webkit-transform 0.6s;
}
.el.s--active .el__bg:before {
  -webkit-transition-delay: 0.6s;
          transition-delay: 0.6s;
  -webkit-transform: scale(1.1);
          transform: scale(1.1);
}

.icon-link {
  position: absolute;
  left: 5px;
  bottom: 5px;
  width: 25px;
}
.icon-link img {
  width: 100%;
  vertical-align: top;
}
.icon-link--twitter {
  left: auto;
  right: 5px;
}


li, a, button{
  font-family: "Montserrat", sans-serif;
  font-weight: 500;
  font-size: 20px;
  color: #edf0f1;
   text-decoration: none;
}

header{
  display: flex;
  justify-content:flex-end;
   align-items: center;
   padding: 5px 1%;
}

.logo{
  cursor: pointer;
  margin-right: auto;
}

.nav__links{
  list-style: none;
}

.nav__links li{
  display: inline-block;
  padding: 0 30px;
}

.nav__links li a {
  transition: all 0.3s ease 0; 
}

.nav__links li a:hover {
  color:#2b2c48; 
  transition: 1s;
}

.videoContainer {
  width: 400px;
  height: 273px;
  position:  absolute;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.26);
  color: #ccc;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.8);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  margin: 10px auto 0;
  
}

.PicContainer1 {
  width: 400px;
  height: 203px;
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.8);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  margin: 50px auto 0;
}

.PicContainer2 {
  width: 210px;
  height: 153px;
  position: relative;
  overflow: hidden;
  background: #000;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.8);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  margin: 50px auto 0;
}

.PicContainer3 {
  width: 100%;
  height: 273px;
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.185);
  border-radius: 10px;
  margin-left: 60%;
  margin-top: 0%;
  padding: 0%;
}

.color{
  color: rgba(10, 6, 250, 0.767);
}