*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 100vh;
    background-image: linear-gradient(to bottom, #3144a0, #3144a0);
}
.navigation{
    position: relative;
    width: 78rem;
    height: 70px;
    background-image: linear-gradient(to bottom, #172b57, #6475c4);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 5px 5px 29px 34px;
}
.navigation ul{
    display: flex;
    width: 350px;
}
.navigation ul li{
    position: relative;
    list-style: none;
    width: 70px;
    height: 70px;
    z-index: 1;
}
.navigation ul li a{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    text-align: center;
    font-weight: 500;
}
.navigation ul li a .icon{
    position: relative;
    display: block;
    line-height: 75px;
    font-size: 1.5rem;
    text-align: center;
    transition: 0.1s;
    color: rgb(12, 12, 12);
}
.navigation ul li.active a .icon{
    transform: translateY(42px);
}
.navigation ul li a .text{
    position: absolute;
    font-weight: 400;
    font-size: 1.2em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    opacity: 0;
    transform: translateY(20px);
    color: rgb(253, 251, 251);
}
.navigation ul li.active a .text{
    opacity: 1;
    transform: translateY(-12px);
}
.indicator{
    position: absolute;
    width: 70px;
    height: 70px;
    background-color: #29fd53;
    top: 60%;
    border-radius: 50%;
    border: 3px solid #6475c4;
    transition: 0.5s;
}
.navigation ul li:nth-child(1).active ~ .indicator{
    transform: translateX(calc(70px * 0));
}
.navigation ul li:nth-child(2).active ~ .indicator{
    transform: translateX(calc(70px * 1));
}
.navigation ul li:nth-child(3).active ~ .indicator{
    transform: translateX(calc(70px * 2));
}
.navigation ul li:nth-child(4).active ~ .indicator{
    transform: translateX(calc(70px * 3));
}
.navigation ul li:nth-child(5).active ~ .indicator{
    transform: translateX(calc(70px * 4));
}
.foot{
    width: 100%;
    height: 3.5rem;
    background-image: linear-gradient(to bottom, #3144a0, #29fd53);
    color: rgb(29, 41, 51);
    margin-top: auto;
}
.foot p{
    font-size: 1.2rem;
    text-align: center;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    line-height: 3.5rem;
}
.container .imgsection img{
    width: 100%;
    margin-left: 30px;
    height: 29rem;
    
}
.container{
    display: flex;
    margin-top: 20px;
    background-image: linear-gradient(to bottom, #3144a0, #16f883);
}
.container .introduce h1{
    word-wrap: inherit;
    margin-top: 6rem;
    margin-left: 5px;
    font-size: 5rem;
    line-height: 1;
    font-style: italic;
    font-weight: bold;
    color: white;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
.container .introduce p{
    margin-top: 1rem;
    font-size: 2rem;
    line-height: 1;
    margin-left: 14rem;
    font-style: italic;
    font-weight: bold;
    color: rgb(29, 29, 73);
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
#whiteman{
    background-color: rgb(31, 31, 65);
    color: beige;
    border: none;
    border-radius: 50px;
    height: 2.5rem;
    width: 8rem;
    margin-left: 17rem;
    margin-top: 10px;
    font-style: italic;
    font-weight: bold;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
#whiteman:hover{
    color: black;
    background-image: linear-gradient(to bottom, #3144a0, #29fd53);
    cursor: pointer;
}
#whiteman2{
    background-color: rgb(31, 31, 65);
    color: beige;
    border: none;
    border-radius: 50px;
    height: 2.5rem;
    width: 8rem;
    margin-left: 1rem;
    margin-top: 10px;
    font-style: italic;
    font-weight: bold;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
#whiteman2:hover{
    color: black;
    background-image: linear-gradient(to bottom, #3144a0, #29fd53);
    cursor: pointer;
}
#banner{
    background-color: rgb(110, 233, 182);
    color: rgb(248, 242, 242);
    border-radius: 10px;
}
#banner2{
    background-color: rgb(103, 99, 156);
    color: rgb(248, 242, 242);
    border-radius: 10px;
}
.pro-con{
    margin-top: 30px;
    display: inline-block;
}
.pro-pro{
    margin-top: 30px;
}
.pro-pro h3{
    font-size: 3rem;
    line-height: 1;
    font-style: italic;
    font-weight: bold;
    color: white;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    text-align: center;
}
.project-img{
    margin-bottom: 30px;
    display: inline-block;
    
}
.project-img img{
    border: 5px solid black;
    height: 250px;
    width: 400px;
    margin-left: 35px;
    border-radius: 10px;
}

@media (max-width:450px){
    .navigation{
        width: 90%;
    }
    .navigation ul li a .text{
        font-size: 0.8rem;
    }
    .container{
        width: 90%;
        display: flex;
        flex-direction: column;
    }
    .container .introduce h1{
        font-size: 3rem;
        margin-top: 1.5rem;
    }
    .container .introduce p{
        font-size: 1.5rem;
        margin-left: 3rem;
    }
    #whiteman{
        margin-left: 1.5rem;
        margin-top: 1.5rem;
    }
    .container .imgsection img{
        margin-left: -4rem;
        width: 127%;
        height: 20rem;
    }
    .project-img{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .project-img img{
        width: 90%;
        margin-left:17px;
    }
    .foot p{
        font-size: .95rem;
    }
}
@media (max-width:768px){
    .navigation{
        width: 90%;
    }
    .container{
        width: 90%;
        
    }
    .container .introduce h1{
        font-size: 4rem;
        margin-top: 1.5rem;
    }
    #whiteman{
        margin-left: 2.5rem;
        margin-top: 1.5rem;
    }
    .container .introduce p{
        font-size: 2rem;
        margin-left: 4rem;
    }
    .project-img{
        display: flex;
    }
    .container .imgsection img{
        margin-left: -4rem;
        width: 127%;
        height: 20rem;
    }
}
@media (max-width:991px){
    .navigation{
        width: 90%;
    }
    .container{
        width: 90%;
        
    }
    .container .introduce h1{
        font-size: 4rem;
        margin-top: 1.5rem;
    }
    #whiteman{
        margin-left: 2.5rem;
        margin-top: 1.5rem;
    }
    .container .introduce p{
        font-size: 2rem;
        margin-left: 4rem;
    }
    .project-img{
        display: flex;
    }
    .container .imgsection img{
        margin-left: -6rem;
        width: 127%;
        height: 20rem;
    }
}