*{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}
.banner{
    width: 100%;
    /*height: 100vh;*/
    /*background-color: rgba(27, 245, 20, 0.502);*/
    
    /*linear-gradient(rgba(245, 239, 239, 0.242),rgba(0,0,0,0.75)),url(Circuit.jpg);*/
    background-size:cover;
    background-position:center;
    min-width:1000px;
}
.navbar{
    width: 100%;
    /*margin: auto; auto error*/
    padding: 10px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: black;
}
.logo{
    width: 120px;
    cursor: pointer;
}
.navbar ul li{
    list-style: none;
    display: inline-block;
    left: -40px;
    margin: 0 20px;
    position: relative;
}
h1{
    color: white;
    right: -40px;
    font-family: New Century Schoolbook, TeX Gyre Schola, serif;
    font-size: 30px;
    position:relative;
}
sec1{
    color: lightskyblue;
    font-family: New Century Schoolbook, TeX Gyre Schola, serif;
}
.navbar ul li a{
    text-decoration: none;
    color: white;
    text-transform: uppercase;
}
/*name{
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    color: greenyellow;
    text-decoration: none;
    text-transform: none;
}*/

.navbar ul li::after{
    content: '';
    height: 3px;
    width: 0;
    /*background: rgb(0, 150, 136);*/
    background: greenyellow;
    position: absolute;
    left: 0;
    bottom: -5px;
    transition: 0.5s;
}
.navbar ul li:hover:after{
    width: 100%;
}
/* .bottombar{
    width: 100%;
    text-align: center;
    background-color: black;
    padding: 25px 0;

    position: fixed;
    overflow:hidden;
    bottom: 0;