app.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}

body {
    background-color: #333;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
}
.container {
    background-color: white;
    border-radius: .5rem;
    padding: 2rem;
    width: 100%;
    max-width: 600px;
}

.header {

}

.header .group {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}
select {
    padding: .25rem;
}
button, select {
    height: 2rem;
}

button {
    width: 5rem;
    border: none;
    background-color: rgb(68, 174, 255);
    border-radius: .5rem;
    color: white;
    transition: .2s ease;
    cursor: pointer;
}

button:hover {
    background-color: rgb(49, 147, 222);
}

.container ul {
    list-style: none;
    display: none;
    max-height: 50vh;
    overflow: auto;
    margin-top: 2rem;
    padding: 1rem;
    padding-top: 0;
}

.container ul.show {
    display: block;
}

.container ul li {
    width: 100%;
    min-height: 100px;
    background-color: #eee;
    overflow: none;
    border-radius: .5rem;
    margin-top: 1rem;
    overflow: hidden;
    padding: .5rem;
}

.container ul li img {
    width: 100%;
    border-radius: .3rem;
    border: 5px solid rgb(255, 255, 255);
}