.logo {
    padding-top: 20px;
}

div {
    border: 2px solid olivedrab;
    border-radius: 10px;
    width: fit-content;
    text-align: center;
    padding: 10px;
    margin-bottom: 40px;
    margin-left: 10px;
}

h1, h2, h4, h5 {
    font-family: "Rubik", serif;
    margin-top: 10px;
    margin-bottom: 10px;
}

li, p{
    font-family: "Rubik", serif;
}

ul {
    display: inline-block;
    text-align: left;
    padding: 0;
}

button {
    padding: 10px;
    background-color: cornflowerblue;
    border: 2px solid black;
    border-radius: 10px;
    color: white;
    font-family: "Rubik", serif;
}

#challenge-list {
    background-color: aliceblue;
    border: 2px solid black;
    width: 750px;
}

.strikethrough {
    font-family: "Rubik", serif;
}

input[type=checkbox]:checked + label.strikethrough{
    text-decoration: line-through;
  }