body {
    font-family: monospace;
    background-color: black;
    color: white;
}

::selection {
    background: none;
}

.col {
    margin-left: 1%;
    margin-right: 1%;
}

.centred {
    text-align: center;
}

#header {
    width: 95vw;
    height: 8vh;
    margin: auto auto 1vh auto;
    border-bottom: 1px solid grey;
    display: flex;
    justify-content: space-around;
    overflow: auto hidden;
}

#footer {
    margin: 1vh auto auto auto;
    width: 95vw;
    height: 5vh;
    display: flex;
    justify-content: space-around;
    border-top: 1px solid grey;
    overflow: auto hidden;
}


div {
    opacity: .95;
    transition: opacity ease-in-out .5s;
}

    div:hover {
        opacity: 1;
    }


h1 {
    font-size: 60px;
}



#splash {
    position: fixed;
    top: 33vh;
    left: 10vw;
    text-align: center;
}

#title {
    cursor: pointer;
    color: white;
    transition: 1s;
}

    #title:hover {
        color: black;
        text-shadow: 2px 2px #f500ff;
    }

.btn {
    cursor: pointer;
    opacity: 0.8;
    transition: 0.5s;
    color: white;
    text-decoration: none;
}

    .btn:hover {
        opacity: 1;
    }


/* == Intro block == */

#mainBlock {
    cursor: auto;
    height: 80vh;
    margin: auto;
    width: 95vw;
    overflow: auto hidden;
}

#intro {
    display: flex;
    flex-flow: row nowrap;
}

.introWords {
    font-size: 24px;
}


.hidden {
    opacity: 0;
    transition: opacity ease-in-out 0.1s;
}

.hidden-hover {
    opacity: 1;
    transition: ease-in-out .1s;
}

.hidden-past {
    opacity: 0;
    transition: opacity ease-in-out 0.1s;
}

    .hidden-past:hover {
        opacity: 1;
        transition: ease-in-out .3s;
    }

.hidden-remains {
    opacity: 0.5;
    transition: 2s;
}