style.css

body{
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: left;
    padding-bottom:25px;
}

nav{
    opacity: 0.8;
}

a:hover{
    color:greenyellow !important;
}

.box-shadow{
    box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.05);
}

section{
    min-height: 800px;
    border-bottom:1px solid lightgray;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.first-section{
    background-color: white;
}

.second-section{
    background-color:#e9ebee;
}

.third-section{
    background-image: url(banner.jpg); 
    background-size:cover;
}

.center-text{
    text-align: center;
}

.red{
    color:#cd4541;
    font-size: 40px;
    text-align: center;
}

.typewrite .red{
    font:40px;
}

.col-md{
    justify-content: center;
    display: flex;
}

.card{
    margin-bottom: 25px;
    box-shadow: 0 10px 40px rgba(59, 43, 91, 0.3);
}


.link-box{
    display: flex;
    justify-content: flex-end;
}



.history-box{
    padding:10px;
    background: rgba(255,255,255,0.9);
    z-index:1;
    box-shadow: 0 10px 40px rgba(59, 43, 91, 0.3);
    border-color: 1px dotted lightgray;
    border-radius: 25px;
    text-align: center;
}