body {
    background-color: rgba(180, 180, 180, 0.62);
}

img {
    min-width: 20%;
    display: block;
    margin-left: auto;
    margin-right: auto
}

.content {
    background-color: #fff;
    padding-bottom: 20px;
    margin-top: 20px;
}

p, li {
    font-size: 1.2em;
}

.buy {
    text-align: center;
}

.exercise {
    
    text-align: center;
}

.video-preview {
    background-color: rgba(180, 180, 180, 0.62);
    margin: 10px -5px 0 -5px;
    border-radius: 7px;
    padding: 10px;
}

.challenge-name {
    text-align: center;
}

.exercise-name {
    margin: 60px 0 25px 0;
}

.inconvenient {
    font-size: .9em;
}