style.css

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
html{
    font-size: 62.5%;
    /*Means 1 rem = 10px*/
    overflow-x: hidden;
}
body{
    overflow-x: hidden;
}
/*============================================
          HEADER MAIN TAG
==============================================*/
.header{
    padding: 0 4.8rem;
    height: 10rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: lightslategray;
}
#header #logo{
    height: 10rem;
}
.Navbar-list{
    display: flex;
    gap: 3rem;
    list-style: none;
}
/*============================================
          NAVEBAR LIST
==============================================*/
.nav-link:link,
.Navbar-list:visited{
    display: inline-block;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 1.5rem;
    font-weight: 500;
    color: black;
    transition: all 0.5s;
}
.nav-link:hover,
.nav-link:active{
    color:red;
    
}
/*============================================
    mobile navbar btn start
==============================================*/

.mobile-btn{
    width: 3rem;
    height: 3rem;
    color: black;
}
.mobile-nav-btn{
    display: none;
    background: transparent;
    cursor: pointer;
}
.mobile-btn[name="close-circle-outline"]{
    display: none;
}
/*============================================
HERO AND SERVICES SECTION START
==============================================*/

#section-hero, #section-Serivice{
    padding: 9.6rem 0;
    background-color: lightgray;
    height: 50vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
#section-Serivice{
    background-color: lightpink;
}
#section-hero p,#section-Serivice p{
    font-size: 3rem;
}
/*============================================
    Responsive Code SECTION START
==============================================*/
/*990*/
@media (max-width: 62em){
    .mobile-nav-btn{
        display: block;
        border: 3px solid black;
        color: black;
    }
    .header{
        position: relative;
    }
    .header #logo{
        width: 20%;
    }
    #Navbar{
        width: 100%;
        height: 100vh;
        background-color: rgb(48, 117, 177);
        position: absolute;
        top: 0;
        left: 0;

        display: flex;
        justify-content: center;
        align-items: center;
       /*To get Transition*/
       transform: translateX(100%);
       transition : all 0.5s linear;

       opacity: 0;
       visibility: hidden;
       pointer-events: none;
    }
    .Navbar-list{
        flex-direction: column;
        align-items: center;
    }
    .active #Navbar{
        transform: translateX(0);
        opacity: 2;
        visibility: visible;
        pointer-events: auto;
    }
    .active .mobile-nav-btn .mobile-btn[name = "close-circle-outline"]{
        display: block;
    }
    .active .mobile-nav-btn .mobile-btn[name = "menu-outline"]{
        display: none
    }
}
/*BELOW 560 PX FOR MORE RESPONSIVE*/
@media (max-width: 35em){
    .header{
        padding: 0 3.2rem;
    }
    .header #logo{
        width: 60%;
    }
}