style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a:link {
    text-decoration: none;
}
body{
    font-family: Roboto, sans-serif;
}

header {
    height: 81px;
    line-height: 81px;;
    background-color: #1d2126;
}
header .container ul li {
    display: inline-block;
}

header .container{
    display: flex;
    justify-content: space-between;
}
header .container ul li  a {
    border-radius: 3px;
    text-transform: uppercase;
    color: #a4aead;
    border: 2px solid transparent;
    padding: 0px 12px;
    display: inline-block;
    height: 30px;
    line-height:30px;
    margin-left: 16px;
}
header .container > ul > li > a:hover {
    border: 2px solid #5b6168;
}
header .container > ul > li > a:active{
    border-color: #23b7a4;
    color: #23b7a4 ;
}
h2 {
    font-size: 36px;
    font-weight: normal;
}
h2.has-first-block{
    position: relative;
    padding-left: 24px;
}
h2.has-first-block:before{
    content: '  ';
    width: 10px;
    height: 35px;
    display: inline-block;
    background-color: #e1e6ea; 
    position: absolute;
    left: 0;
    top:1px;
}

#hero {
    height: 660px;
    background-image: url('img/banner.jpg');
    background-repeat: no-repeat;
    background-size: cover;
}
#hero .container {
    height: 600px;
    padding-top: 80px;
    position: relative;
    max-width: 1140px;
    margin-left: 191px;
}
#hero .container > h2 {
    line-height: 42px;
    color: white;
    text-transform:  uppercase;
    font-weight: normal;
}
#hero .container h2,
#hero .container p {
    max-width: 585px;
}
#hero .container > p {
    margin-top: 26px;
    font-size: 16px;
    color: white;
    line-height: 26px;
    margin-top: 26px;
}
#hero .container > div > a {
    display: inline-block;
    height: 44px;
    padding: 0px 30px;
    border: 2px solid white;
    border-radius: 3px;
    font-size: 14px;
    text-transform: uppercase;
    line-height: 40px;
    color: white;
}
#hero .container div a:hover{
    background-color: #23b7a4;
}
#hero .container > ul {
    position: absolute;
    right: 0px;
    bottom: 30px;
}
#hero .container > ul li {
    display: inline-block;
    margin-left: 9px;
}
#hero .container ul li:first-child{
    margin-left: 0px;
}
#hero .container > ul > li > a {
    border: 2px solid white;
    text-indent: -1000000px;
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
}
#hero .container  ul li a.current {
    background-color: white;
}

/*abouttttt*/

#about {
    border-bottom: 2px solid #dde1e4;
    padding-top: 80px;
}
#about .container h2 {
    color: #292f36;
    text-transform: uppercase;
}

#about .container p {
    width: 1140px;
    font-size: 16px;
    line-height: 26px;
    color: #8d8f92;
}

#about .container > div {
    display: flex;
    justify-content: space-between;
}
#about .container > div > div:first-child{
    width: 654px;
}
#about .container > div > div:first-child p {
    margin-bottom: 25px;
}
#about .container > div > div:last-child{
    width: 457px;
}
#about .container h2 {
    padding-bottom: 60px;
}
#about .container{
    margin-left: 191px;
    padding-top: 80px;
}
#about ul li{
    display: inline-block;
}
#about ul li a {
    width: 60px;
    display: inline-block;
    height: 60px;
    background-color: #c8cdd0;
    text-indent: -10000000px;
    background-repeat: no-repeat;
    background-position: center center;
}
#about ul li a:hover{
    color: #d0d5d9;
}
#about ul li:nth-child(1) a {
    background-image: url(img/fb.jpg);
}
#about ul li:nth-child(2) a {
    background-image: url(img/twitter.jpg);
}
#about ul li:nth-child(3) a {
    background-image: url(img/bong.jpg);
}
#about ul li:nth-child(4) a {
    background-image: url(img/gg.jpg);
}
#about ul li:nth-child(5) a {
    background-image: url(img/be.jpg);
}
#about ol li:before {
    content: counters(about,'.',decimal-leading-zero);
    counter-increment: about;
    display: inline-block;
    width: 50px;
    height: 50px;
    background-color: #23b7a4;
    color: white;
    font-size: 20px;
    line-height: 50px;
    text-align: center;
    position: absolute;
    top: 0px;
    left: 0px;
}
#about ol li{
    position: relative;
    list-style: none;
    padding-left: 67px;
    padding-bottom: 20px;
}
#about ol {
    counter-reset: about;
}
#about ol li h3 {
    text-transform: uppercase;
    font-weight: normal;
    font-size: 16px;
    color: #292f36;
}
#about ol li p {
    line-height: 26px;
    font-size: 16px;
    color: #292f36;
}
.container {
    max-width: 1140px;
    margin: 0px auto;
}

#team-list > div > div > img {
    display: block;
}
#team-list {
    display: flex;
    justify-content: space-between;
    padding-top: 50px;
}
#team-list img {
    position: relative;
    overflow: hidden;
}

#team-list .infor {
    padding: 2rem 1.9rem;
    position: absolute;
    background-color:  #e1e6ea;
    height: 75px;
    width: 264px;
}

#work-list > div {
    width: calc((100% - 90px) / 3);
}
.mask {
    display: none;
}
#team-list .infor p {
    font-size: 14px;
    color:#8d8f92 ;
    margin-top: 3px;
}
#team-list .infor{
    line-height: 14px;
    position: center center;
}
#team-list > div:hover .infor{
    background-color: #3a454d;
}
#team-list > div:hover h4,
#team-list > div:hover p {
    color: white;
}
#team-list > div:hover > div .mask {
    display: block;    
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
}
#team-list > div > div:not(.infor){
    position: relative;
}
#team-list  .mask  ul li {
    display: inline-block;
}
#team-list  .mask  ul li  a {
    display: inline-block;
    height: 50px;
    width: 50px;
    background-color: #3a454d;
    text-indent: -1000000px;
    background-repeat: no-repeat;
    background-position: center center;
}
#team-list  .mask  ul li:nth-child(1) a {
    background-image: url(img/chim.png);
}
#team-list  .mask  ul li:nth-child(2) a {
    background-image: url(img/F.png);
}
#team-list  .mask  ul li:nth-child(3) a {
    background-image: url(img/in.png);
}

/* work */  
#work .container {
    padding-top: 0px;
}
#work {
    background-color: #3a454d;
    padding-top: 80px;
    padding-bottom: 60px;
    height: 890px;
    width: 100%;
    background: url(img/BG1.jpg) no-repeat center center / cover;
}
#work .container #work-list img {
    display: block;
}
#work h2 {
    color: white;
    text-transform: uppercase;
    width: 280px;
}
#work h2.has-first-block:before {
    background-color: #4e5a62;
}
#work-list {
    margin-top: 60px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
#work-list .mask {
    display: block;
}
#work-list > div { 
    width: calc((100% - 60px) / 3);
    margin-bottom: 30px;
    position: relative;
    cursor: pointer;
}
#work-list > div img {
    max-width: 100%;
}
#work-list > div .mask {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(41, 47, 54, 0.5) url(img/plus.png) no-repeat center 95px;
    display: none;
}
#work-list > div .mask h4 {
    position: absolute;
    bottom: 0;
    left: 0;
    background-color: #292f36;
    height: 60px;
    line-height: 60px;
    color: white;
    text-transform: uppercase;
    font-size: 18px;
    padding: 0px 20px;
    font-weight: normal;
    width: 100%;
}
#work-list > div:hover .mask{
    display: block;
}
#work .container {
    text-align: center;
}
#work .container div div a {
    height: 44px;
    padding: 0px 30px;
    border: 2px solid white;
    border-radius:  3px;
    font-size: 14px;
    text-transform: uppercase;
    line-height: 40px;
    padding-bottom: 10px;
    padding-top: 10px;
    color: white;
    margin-right: 11px;
    background-color: transparent;
    text-align: center;
}
#work .container div button:hover{
    border-color: #23b7a4;
    background-color: #23b7a4;
}

/* */

#wwd {
    padding-top: 80px;
    padding-bottom: 70px;
}
#wwd h2 {
    margin-bottom: 90px;
    font-size: 36px;
    color: #292f36;
    text-transform: uppercase;
    font-weight: normal;
}

#wwd div ul {
    display: flex;
    flex-wrap: wrap;
}
#wwd ul li {
    width: calc((100% - 90px) / 4 );
    list-style: none;
    height: fit-content;
    margin-bottom: 88px;
}

#wwd div ul li:before{
    content: ' ';
    display: block;
    width: 48px;
    height: 100%;
    background-repeat: no-repeat;
    background-position: center;
}

#wwd ul li img {
    padding-left: 109px;
}

#wwd div ul li h4{
    font-size: 17px;
    line-height: 17px;
    text-align: center;
    text-transform: uppercase;
    color: #292f36;
    margin-top: 30px;
    font-weight: normal;
    margin-bottom: 25px;
}
#wwd div ul li p {
    font-size: 16px;
    line-height: 26px;
    color: #8d8f92;
    text-align: center;
}

/* features*/

#features {
    background-color: #3a454d;
    padding-bottom: 115px;
}
#features h2 {
    color: white;
    text-transform: uppercase;
    margin-bottom: 60px;
}
#features h2.has-first-block:before{
    background-color: #4e5a62;
}
#features-list {
    justify-content: space-between;
    display: flex;
}
#features-list div {
    width: calc((100% - 60px)  / 3 );
}
#features-list div img {
    max-width: 100%;
}
#features-list div h4 { 
    color: white;
    font-size: 18px;
    font-weight: normal;
    line-height: 42px;
    margin-bottom: 14px;
    margin-top: 42px;
    text-transform: uppercase;
}
#features-list div p{
    color: #dcdfe1;
    font-size: 16px;
}

/* stay in touch*/
div#contact{
    height: 772px;
}
#contact {
    margin-bottom: 102px;
    padding-top: 64px;
    position: relative;
}
#contact h2 {
    text-transform: uppercase;
    color: #292f36;
}
#contact #contact-infor{
    z-index: 10;
    margin-top: -130px;
    display: flex;
}

#map {
    position: absolute;
    width: 100%;
    height: 346px;
    background-repeat: no-repeat;
    background-size: cover;
    background-image: url(img/map.png);
}
#contact .has-first-block:before {
    left: 189px;
}
#contact .has-first-block {
    padding-left: 215px;
}
#contact #contact-infor > div,
#contact #contact-infor > form {
    width: calc((100% - 30px)/2);
}
#contact-infor div h4 {
    color: #292f36;
    text-transform:uppercase;
    font-size: 20px;
    line-height: 26px;
}
#contact-infor div p {
    font-size: 16px;
    line-height: 26px;
    color: #8d8f92;
}
#contact-infor form {   
    z-index: -1;
    float: right;
}
#contact #contact-infor div #left {
    padding-top: 180 px;
}
#right {
    padding-top: 320px;
    padding-left: 300px;
}
#left {
    padding-top: 470px;
}
#left h4 {
    color: #292f36;
    text-transform:uppercase;
    font-size: 20px;
    line-height: 26px;
    margin-bottom: 33px;
}
#left p {
    font-size: 16px;
    line-height: 26px;
    color: #8d8f92;
    margin-bottom: 26px;
}
#right form {
    background-color: white;
    padding: 30px;
    width: 555px;
    height: 386px;
}
#right form > div {
    margin-bottom: 30px;
}
#right form .two-col {
    justify-content: space-between;
    display: flex;
}
#right form .two-col div {
    width: calc((100% - 16px)/2);
}
#right form label{
    margin-left: 8px;
    display: block;
    text-transform: uppercase;
    font-size: 14px;
    line-height: 14px;
    margin-bottom: 10px;
    color: #8d8f92;
}
#contact-infor #right form input,
#contact-infor #right form textarea{
    background-color: #eaeef1;
    width: 100%;
    border: none;
    outline: none;
    font-size: 20px;
    line-height: 16px;
}
#contact-infor #right form input {
    padding: 0px 22px;
    line-height: 44px;
}
#contact-infor #right form textarea{
    padding: 22px;
    height: 160px;
}
#right form button {
    background-color: #23b7a4;
    border: none;
    color: white;
    text-transform: uppercase;
    height: 44px;
    padding: 16px 16px;
}
#right form button:hover{
    background-color: #1b9182;
}

/*footer*/

footer{
    background-color: #3a454d;
    height: 95px;
    line-height: 95px;
    width: 100%;
}
footer div .container{
    height: 95px;
}
footer div {
    display: flex;
    justify-content: space-between;
}
footer div.container{
    height: 95px;
}
footer p {
    padding-left: 180px;
    font-size: 14px;
    color: white;
}
footer ul li {
    display: inline;
    line-height: 95px;
}
footer ul li a {
    padding-left: 40px;
    text-indent: -1000000px;
    display: inline-block;
    width: 48px;
    height: 48px;
    background-repeat: no-repeat;
    vertical-align: middle;
}
footer ul li:nth-child(1) a{
    background-image: url(img/chim.png);
}
footer ul li:nth-child(2) a{
    background-image: url(img/F.png);
}
footer ul li:nth-child(3) a{
    background-image: url(img/F.png);
}
footer ul li:nth-child(4) a{
    background-image: url(img/chim.png);
}
footer ul li:nth-child(5) a{
    background-image: url(img/F.png);
}