html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: linear-gradient(to left, #009ccb, #8400ad);
    font-family: Calibri, sans-serif;
    color: white;
    overflow: hidden; /* Prevents any remaining tiny scroll */
}

#main-header {
    background-color: rgb(50, 50, 50);
    height: 50px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    font-size: 12px;
    flex-shrink: 0; /* prevents layout pushing */
}

#main-tips {
    background-color: rgb(75,75,75);
    height: 35px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    font-size: 14px;
    flex-shrink: 0;
}

#particles-js {
    flex: 1;
    position: relative;
    overflow: hidden; /* ensures absolutely nothing scrolls */
}

#footer {
    background-color: rgb(50, 50, 50);
    height: 50px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    font-size: 7px;
    flex-shrink: 0;
}