html {
    font-family: 'Inconsolata', monospace;
}

.content {
    max-width: 650px;
    margin: 0 auto;
}

.size-1 {
    font-size: 24px;
}

.size-2 {
    font-size: 18px;
}

img {
    width: 100%;
}

.unfinished {
    color: red
}

.need-check {
    color: orange
}

.youtube-video {
    width: 100%;
    height: 400px;
    align-content: center;
}