body {
    background-color: #222;
    font-family: monospace;
    color: #0d0;
    padding: 20;
    font-size: 12pt;
}

a {
    color: rgb(255, 238, 2);
    text-decoration: underline;
    }

.txt {
    color: #bbb;
}
.prompt
{
    font-weight: bolder;
    color: #0f0;
}
.blink {
    animation: blink-animation 1s steps(5,start) infinite;
    -webkit-animation: blink-animation 1s steps(5,start) infinite;
}
@keyframes blink-animation {
    to {
        visibility: hidden;
    }
}
@-webkit-keyframes blink-animation {
    to {
        visibility: hidden;
    }
}
.error {
    color: #d00;
}