app.css

.word{
    padding:0.25em;
    background-color: #afafaf;
    border-radius:0.25em;
    line-height: 2.0em;
    margin-right:0.25em;
}

.prime{
    background-color: yellow;
}
.palindromic{
    background-color: orange;
}
.emirp{
    background-color: red;
}
.reversed_prime{
    background-color: lightgreen;
}


.fibonacci_number{
    border: 1px solid blue;
}

.too_big{
    border: 1px dotted black !important;
    background-color: #cfcfcf !important;
}
.too_big::before{
    content:'~ '
}


pre {
    white-space: pre-wrap;       /* Since CSS 2.1 */
    white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
    white-space: -pre-wrap;      /* Opera 4-6 */
    white-space: -o-pre-wrap;    /* Opera 7 */
    word-wrap: break-word;       /* Internet Explorer 5.5+ */
}
.text-muted{
    color: gray;
}
.sep-left{
    border-left: 1px solid gray;
    padding-left: 0.25em;
}