body{
    position: relative;
    min-height: 100vh;
}

.back-div{
    background-image: url(../imgs/back2.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: fixed;
    z-index: 0;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    opacity: 0.8;
    filter: sepia(1) blur(3px);
}

.font-bold{
    font-weight: 600;
}