code.css

/* CSS RESET */

*{
    margin: 0;
    padding: 0;
}

/* CSS VARIABLE */

:root{

    --navbarHeight:59px;
}

/* navigation bar */

#navbar{

    position: relative;
    display: flex;
    align-items: center;
}

#navbar::before{
    content: "";

    background-color: black;
    width: 100%;
    height: 80%;
    top: 0px;
    left: 0px;
    position: absolute;
    z-index: -1;
    opacity: 0.7;
}

#logo img{
    width: 74px;
    height: 66px;
    border-radius: 21px;
    margin: 19px 15px;
}

#navbar ul{
    display: flex;
}

#navbar ul li{
    list-style: none;
    margin: 5px 5px;
}

#navbar ul li a{
    display: block;
    text-decoration: none;
    padding: 6px 6px;
    border-radius: 20px;
    color: white;
}

#navbar ul li a:hover{
    color: black;
    background-color: white;
}

/* home */

#home{

    display: flex;
    flex-direction: column;
    align-items: center;
    height: 293px;
    padding: 23px 220px;
    justify-content: center;
}

#home::before{

    content: "";
    position: absolute;

    background: url(img.jpg) no-repeat center center/cover;
    width: 100%;
    height: 65%;
    z-index: -1;
    top:0px;
    left: 0px;

    opacity: 0.8;
}

/* service section */

.service{

    margin: 54px;
    display: flex;
}

.service .box{
    margin: 36px;
    padding: 34px;
    border: 2px solid plum;
    border-radius: 25px;
    background-color: rgb(183, 236, 238);
}

.service .box img{
    width: 150px;
    height: 123px;
    display: block;
    margin: auto;
}


/* utility classes */

#home h1{
    color: white;
    text-align: center;
}

#home p{
    color: white;
    text-align:justify;
    font-size: 1.4rem;
}

.h1_primary{
    color: rgb(56, 55, 55);
    font-size: 2.8rem;
    padding: 2px;
    font-family:cursive;
    font-weight: bolder;
}

.h_secondary
{
    color: rgb(247, 247, 247);
    font-size: 1.9rem;
    padding: 2px;
    font-family:cursive;
    font-weight: bolder;
}

.btn{

    font-size: 1.2rem;
    font-family:sans-serif;
    font-weight:bolder;
    padding: 2px 18px;
    border: 3px solid white;
    background-color: violet;
    border-radius: 20px;
    margin: 15px;
    cursor: pointer;
}

.center{
    text-align: center;
}