nav li:nth-child(3) {
    border-bottom: 2px solid white;
}

header {
    background: linear-gradient(to top, #000000, rgba(58, 191, 188, 0) 70%), url('https://visionone.com.my/wp-content/uploads/2016/02/oil-gas-banner.jpg') center/cover no-repeat;
    background-position: 50% 50%;
    position: relative;
    height: 500px;
}

header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 400px;
    background: linear-gradient(to top, #000000, rgba(58, 191, 188, 0) 40%);
}

body {
    background-color: #000000;
    color: #bdbdbd;
}

#intro {
    position: relative;
    padding: 20px 120px;
    color: #ffffff;
}

#intro p {
    color: #bdbdbd;
}

#intro h2 {
    max-width: 500px;
    font-size: 40px;
}

#big-title,
#greet {
    margin-top: 150px;
    margin-bottom: 100px;
}

#misi-visi {
    margin-top: 150px;
}

#misi-visi .mission-content3 {
    margin-bottom: 150px;
}

#big-title,
#greet,
#misi-visi {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 300px 0 300px;
}

#big-title div {
    display: flex;
    align-items: center;
    justify-content: center;
}

#big-title div p {
    margin: 0;
}

#big-title .our-service,
#big-title .adhere-to {
    display: inline;
    margin-right: 10px;
}

#big-title .our-service,
#big-title .status,
#greet .greetText .status,
#misi-visi .mission,
#misi-visi .vision {
    font-weight: 700;
    color: #fff;
    font-size: 25px;
}

#big-title .IS {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
}

#big-title .IS p {
    margin: 0;
    font-size: 150px;
    font-weight: 700;
    line-height: normal;
}

#big-title .IS .international {
    background: linear-gradient(to top, #3ABFBC, #f2f2f2);
    -webkit-background-clip: text;
    color: transparent;
}

#big-title .IS .standards {
    background: linear-gradient(to bottom, #3ABFBC, #000000);
    -webkit-background-clip: text;
    color: transparent;
}

#big-title .ps,
#greet {
    display: inline;
    margin-right: 10px;
}

#big-title .provision {
    font-weight: 600;
    color: #ffffff;
}

#big-title .provision,
#greet {
    padding-bottom: 20px;
}

#big-title .state,
#misi-visi .vision-content,
#misi-visi .mission-content1,
#misi-visi .mission-content2,
#misi-visi .mission-content3 {
    padding-bottom: 10px;
}

#big-title .state,
#misi-visi .vision-content {
    padding-bottom: 90px;
}

#misi-visi .mission-content3 {
    padding-bottom: 190px;
}

#credit {
    display: flex;
    justify-content: space-around;
    margin-left: 60px;
    margin-right: 60px;
}

#credit div {
    flex: 1;
    margin: 50px 30px;
    padding: 50px;
    border-radius: 14px;
    font-size: 25px;
    font-weight: 700;
    text-align: center;
    color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.2s ease-in-out;
}

#credit .box1,
#credit .box2,
#credit .box3,
#credit .box4 {
    width: 50px;
}

#credit .box1 {
    background: linear-gradient(to right, #8B5CE8, #ffffff);
    background-clip: text;
    -webkit-background-clip: text;
    box-shadow: 10px 10px 40px rgba(139, 92, 232, 0.6);
}

#credit .box1:hover {
    box-shadow: 10px 10px 50px rgba(139, 92, 232, 1);
}

#credit .box2 {
    background: linear-gradient(to right, #69FBCF, #ffffff);
    background-clip: text;
    -webkit-background-clip: text;
    box-shadow: 10px 10px 40px rgba(105, 251, 207, 0.4);
}

#credit .box2:hover {
    box-shadow: 10px 10px 50px rgba(105, 251, 207, 1);
}

#credit .box3 {
    background: linear-gradient(to right, #BF3A3A, #ffffff);
    background-clip: text;
    -webkit-background-clip: text;
    box-shadow: 10px 10px 40px rgba(236, 93, 93, 0.6);
}

#credit .box3:hover {
    box-shadow: 10px 10px 50px rgba(236,
            93,
            93, 1);
}

#credit .box4 {
    background: linear-gradient(to right, #69FBCF, #ffffff);
    background-clip: text;
    -webkit-background-clip: text;
    box-shadow: 10px 10px 40px rgba(58, 191, 188, 0.6);
}

#credit .box4:hover {
    box-shadow: 10px 10px 50px rgba(58, 191, 188, 1);
}

footer {
    background-color: #000000;
    color: #919396;
}

@media screen and (max-width: 767px) {
    header {
        height: 300px;
    }

    header::after {
        height: 150px;
    }

    #intro,
    #title,
    #content,
    #big-title,
    #greet,
    #misi-visi,
    #credit {
        padding: 20px;
        margin: 0 20px;
    }

    #big-title .IS p {
        font-size: 80px;
    }
}

@media screen and (min-width: 767px) {
    nav li:nth-child(3) {
        border-bottom: 2px solid white;
    }

    header {
        background: linear-gradient(to top, #000000, rgba(58, 191, 188, 0) 70%), url('https://visionone.com.my/wp-content/uploads/2016/02/oil-gas-banner.jpg') center/cover no-repeat;
        background-attachment: scroll;
        position: relative;
        height: 500px;
    }

    header::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 400px;
        background: linear-gradient(to top, #000000, rgba(58, 191, 188, 0) 40%);
    }
}