* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 16px;
}
html {
    background-color: black;
    color: white;
}
body {
    padding: 1em;
}
header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
h1 {
    font-size: 1.7em;
    margin-bottom: 1.5em;
}
h2 {
    font-size: 1.3em;
    margin-bottom: 1em;
}
hr {
    margin: 2em 0;
}
.wishlists, .cardlist {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    text-align: center;
}
.cardlist {
    flex-wrap: wrap;
}
.cardlist {
    margin: 0 2em;
}
.card {
    width: 250px;
    margin-bottom: 1em;
}
.deletebtn {
    display: block;
    border-radius: 5px;
    padding: 2px;
    text-decoration: none;
    color: red;
}
.deletebtn:hover {
    background-color: #550000;
}