body {
    background-color: rgb(40, 40, 40);
}

.all {
    display: flex;
    flex-direction: row;
}

.collatz {
    color: white;
}

footer {
    background-color: rgb(255, 255, 255);
    color: black;
}



.collatz {
    border: 1px dotted black;
}

.main {
    margin: 0 auto;
    width: 30%;
    margin-left:1px;
}

.pics {
    margin: 0 auto;
    width: 50%;
    margin-left: 1px;
}

.sb_title {
    box-shadow: 0px 0px 30px white;
    background-color: #f1f3f4;
    padding: 5px;
    border: 1px dotted black;
    text-align: left;

    font-family: monospace;
    letter-spacing: 2px;
    text-shadow: 0 0 0px, 0 0 3px grey;

    font-size: 12px;
    font-weight: bold;
    color: black;
}
.sb_links {
    padding: 15px;
    background-color: white;
    line-height: 20px;
    border: dotted 1px black;
}