style.css

.crossword {
    font-family: monospace;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    overflow-x: auto;
}
.crossword .c-row {
    display: flex;
}
.cell {
    border: 1px solid black;
    background-color: white;
    color: black;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.25em 0.75em;
}
.dark .cell {
    border: 1px solid gray;
    background-color: black;
    color: white;
}
.crossword .cell.filled :not([clue]) {
    background-color: gainsboro;
}
.dark .crossword .cell.filled :not([clue]) {
    background-color: dimgray;
}
.clue-1, #clue-1 textarea {
    background-color: lightpink;
}
.clue-2, #clue-2 textarea {
    background-color: lightgreen;
}
.clue-3, #clue-3 textarea {
    background-color: lightblue;
}
.clue-1.clue-2 {
    background: linear-gradient(45deg, lightpink 50%, lightgreen 50%);
}
.clue-1.clue-3 {
    background: linear-gradient(45deg, lightpink 50%, lightblue 50%);
}
.clue-2.clue-3 {
    background: linear-gradient(45deg, lightgreen 50%, lightblue 50%);
}

.dark .clue-1, .dark #clue-1 textarea {
    background-color: darkred;
}
.dark .clue-2, .dark #clue-2 textarea {
    background-color: darkgreen;
}
.dark .clue-3, .dark #clue-3 textarea {
    background-color: darkblue;
}
#clue-1 textarea, #clue-2 textarea, #clue-3 textarea {
    font-size: 1.4em;
}
.dark .clue-1.clue-2 {
    background: linear-gradient(45deg, darkred 50%, darkgreen 50%);
}
.dark .clue-1.clue-3 {
    background: linear-gradient(45deg, darkred 50%, darkblue 50%);
}
.dark .clue-2.clue-3 {
    background: linear-gradient(45deg, darkgreen 50%, darkblue 50%);
}


.cell.clue {
    -webkit-animation: glow 1s ease-in-out infinite alternate;
    -moz-animation: glow 1s ease-in-out infinite alternate;
    animation: glow 1s ease-in-out infinite alternate;  
}
@-webkit-keyframes glow {
    from {
        opacity: 1;
    }
    to {
        opacity: 0.75;
    }
}
#clue1 textarea, #clue2 textarea, #clue3 textarea {
    font-weight: bold;
    font-size: 1.4em;
}

.textspan {
    display: block !important;
    margin: 4px 0 0 0 !important;
    font-size: 1.25em;
}
.textspan .label {
    display: none;
}
.generating {
    display: none !important;
}