styles.css

body {
    background-color: rgb(24, 32, 37);
    font-family: 'Lato', sans-serif;
    margin: 20px;
    text-align: center;
    color: #FFF;
    font-weight: 400;
}

h1 {
    color: #f8bc45;
    margin-bottom: 10px;
}

h2 {
    font-size: 30px;
    font-weight: 700;
}

h3 {
    padding: 0;
    margin: 10px;
    font-size: 20px;
    font-weight: 700;
}

.description {
    font-size: 14px;
    padding: 0 0 2px 0;
}

.container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: flex-start;
    align-content: stretch;
}

.box {
    width: 300px;
    height: 200px;
    padding: 10px;
    margin: 10px;
    border: 1px solid grey;
    border-radius: 3px;
    background-color: #c596c7;
    color: rgb(24, 32, 37);
    box-sizing: border-box;
}

.modal {
    height: 350px;
    width: 80%;
    margin: 0 auto;
    background-color: #FFF;
    color: #000;
    position: fixed;
    top: 40px;
    right: 0;
    left: 0;
    z-index: 100;
    border-radius: 5px;
    padding: 10px;
    min-height: 380px;
}

.modal-overlay {
    background-color: rgba(0,0,0,0.75);
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

textarea {
    margin-bottom: 10px;
    max-width: 100%;
}

code {
    font-family: courier;
}

input, button {
    border-radius: 3px;
    background-color: #fff;
    padding: 10px;
    margin: 10px;
}

button {
    cursor: pointer;
    font-weight: 700;
    font-size: 14px;
}

button.selected {
    background-color: #f8bc45;
}

button.green {
    background-color: #5ab3b3;
    font-size: 22px;
}