popup.css

body {
    background: #f5f5f5;
    color: #333;
    font-size: 16px;
}

.container {
    width: 450px;
    padding: 20px;
}

h3 {
    font-size: 14px;
    padding: 10px;
    border-bottom: 2px solid #333;
}

.wrapper {
    display: flex;
}

.wrapper input {
    flex: 1;
    background: #f5f5f5;
    border-radius: 6px;
    border: 1px solid #ddd;
    padding: 10px;
    font-size: 16px;
}

.wrapper button, li button {
    margin-left: 10px;
    width: 75px;
    background: none;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.wrapper button:hover {
    color: #0375a7;
}

li button:hover {
    color: #ac0505;
}

ul {
    padding: 0;
    margin: 0;
}

ul li {
    display: flex;
    list-style: none;
}

ul li p {
    flex: 1;
}