body {
    font-family: Sans-Serif;
    margin: 0;
    padding: 0;
    color: #222;
    background-color: #FAFAFA;
}

h1 {
    margin: 0 auto;
    padding-top: 2em;
    text-align: center;
}

.section {
    margin: 0 auto;
    padding: 0.5em;
    text-align: center;
    font-size: 1.2em;
}

#clock {
    font-family: monospace;
    font-size: 3.2em;
}

.weeks {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    width: 80%;
    margin: 1em auto;
    padding: 5px;
    border: solid #777 1px;
    background-color: white;
}

.week {
    height: 10px;
    width: 10px;
    margin: 2.5px;
    border: solid #777 1px;
}

.week.elapsed {
    background-color: #777
}

.week.current {
    background-color: #0F0;
    animation-name: blink;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    animation-duration: 1s;
}

@keyframes blink {
    0% { background-color: rgba(0, 0, 0, 0); }
    10% { background-color: #777; }
    35% { background-color: rgba(0, 0, 0, 0); }
    100% { background-color: rgba(0, 0, 0, 0); }
}