#top {
    margin: 5em;
}

.cell {
    display: table-cell;
    min-width: 1.5em;
    width: 1.5em;
    height: 1.5em;
    border: solid 1px black;
    border-collapse: collapse;
    position: relative;
    font-size: 200%;
}

.cell input {
    font-size: inherit;
    width: 1.5em;
    height: 1.5em;
    border: none;
    margin: 0;
    padding: 0;
    margin: auto;
    text-align: center;
    caret-color: transparent;
}

.cell-number {
    font: sans-serif;
    font-size: 20%;
    position: absolute;
    top: -2px;
    left: 0;
    z-index: 2;
    padding: 0 .4em;
    margin: 0;
}

.block {
    background-color: black;
}

.grid {
    display: inline-block;
    vertical-align: top;
    margin-top: 1.5em;
    margin-right: 2em;
}

.clues-container {
    display: inline-block;
    width: 32em;
}

.clues {
    display: inline-block;
    width: 40%;
    margin: auto;
    padding-right: 2em;
    vertical-align: top;
}

.clue {
    padding-left: .25em;
}

.clue:hover {
    cursor: pointer;
}

.highlight {
    background-color: lightskyblue;
}

.lowlight {
    background-color: cornsilk;
}

.buttons {
    margin: 2em auto;
    text-align: center;
}

#message {
    z-index: 10;
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
}

#message img {
    width: unset;
}

.congrats {
    background: url('img/confetti-4.gif');
}