index.css

* {
    margin: 0;
    padding: 0;
}

#container{
    position: sticky;
}
.nav-item {
    padding-left: 20px;
    padding-right: 20px;
    text-align: center;
}

.nav-item:hover {
    color: black;
    background-color: rgb(245, 239, 239);
}

#btn1 {
    border: rgb(224, 224, 224) 2px solid;
    margin-right: 5px;
    color: #1a73e8;
}

#btn2 {
    background-color: #1a73e8;
    color: white;
}

#btn2:hover {
    background-color: #1561c3;
}

#btn1:hover {
    border: #1a73e8 2px solid;
    background-color: #eaf3ff;
}

* {
    margin: 0px;
    padding: 0px;
}

.box ul li {
    position: absolute;
    width: 35px;
    height: 35px;
    list-style: none;
    opacity: 0;
    background: radial-gradient(#dfe0ff, transparent, transparent);
    bottom: 0;
    left: 10vw;
    animation: animate 10s linear infinite;
}

.box ul li:nth-child(2) {
    left: 36vw;
    animation-delay: 2s;
}

.box ul li:nth-child(3) {
    left: 22vw;
    animation-delay: 4s;
}

.box ul li:nth-child(4) {
    left: 56vw;
    animation-delay: 6s;
}

.box ul li:nth-child(5) {
    left: 76vw;
    animation-delay: 4s;
}

.box ul li:nth-child(6) {
    left: 80vw;
    animation-delay: 8s;
}

#heading {
    background-color: #8f92f6;
    color: white;
    padding: 60px 00px 50px 00px;
}

#head {
    font-size: 60px;
    color: white;
}

#text1 {
    float: left;
    padding: 150px 80px 300px 80px;
}

#pic1 {
    float: right;
    margin-right: 50px;
    margin-top: 40px;
}

#text2 {
    float: right;
    padding: 220px 240px 150px 80px;
}

#pic2{
    float: left;
    margin-left: 120px;
    margin-top: 60px;
}
#text3 {
    float: left;
    padding: 150px 30px 300px 30px;
}

#pic3 {
    float: right;
    margin-right: 50px;
    margin-top: 40px;
}
#text4 {
    float: right;
    padding: 220px 80px 120px 80px;
}

#pic4{
    float: left;
    margin-left: 40px;
    margin-top: 40px;
}
#text5{
    float: center;
    margin-top: 2850px;
}
#foot{
    background-color: #f8f9fa;
    height: 100px;
    list-style: none ;
}

@keyframes animate {
    0% {
        transform: scale(0);
        opacity: 2;
        bottom: 0;
    }

    100% {
        transform: scale(10);
        opacity: 1;
        bottom: 100vh;
    }
}