style.css

html,body{
    font-family: 'Caveat', cursive;
    font-size: 1.4rem;
    margin: 50px;
    background-image: url(https://images.unsplash.com/photo-1543497415-75c0a27177c0?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxleHBsb3JlLWZlZWR8OXx8fGVufDB8fHx8&auto=format&fit=crop&w=500&q=60);
    background-attachment: fixed;
    background-repeat: repeat;
    display: flex;
    justify-content: center;
}
.add{
    display: flex;
    flex-direction: column;
    border: 2px solid red;
    justify-content: center;
    align-items: center;
}
.newForm{
    padding: 10px;
    text-align: left;
}
.show{
    display: inline-flex;
    justify-content: space-evenly;
    background: rgba(20, 228, 211, 0.219);
    flex-wrap: wrap;
}
.show > ul{
    text-align: left;
    margin-left: 10px;
    border: 3px solid mistyrose;
    border-radius: 8px;
}
.show > ul > button{
    color: purple;
    border: 2px solid red;
    border-radius: 10px;
}