.details{
    margin-left:auto;
}
.colour{
    background-color: black;
}
.nav-border{
    border-bottom: 2px solid black;
}
.container{
    margin-top: 50px;
    padding:0px;
    box-sizing:border-box;
    height:50%;
    display:flex;
    align-items:center;
    justify-content: center;
    flex-direction: column;
    background-color: #f1f1f1;
    
}
.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color:  black;
    color: white;
    text-align: center;
}