style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    text-decoration: none;
}

html, body{
    height: 100%;
    width: 100%;
    background-color: #262a2f;
    font-family: "poppins", sans-serif;
    overflow: hidden;
}

.container{
    margin:  15% auto 0;
    background-color: white;
    max-width: 600px;
    width: 90%;
    border-radius: 7px;
}

.row{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

#search-box{
    border: 0;
    outline: 0;
    padding: 10px 20px;
    font-size: 20px;
    flex: 1;
}

.search{
    background: transparent;
    border: 0;
    outline: 0;
    cursor: pointer;
}

.fa-magnifying-glass{
    padding: 17px;
    font-size: 20px;
}

.search-items ul{
    border-top: 1px solid #999;
    padding: 15px 10px;
}

.search-items ul li{
    padding: 15px 10px;
    border-radius: 3px;
    color: #555;
    cursor: pointer;
}

.search-items ul li:hover{
    background-color: #e9f3ff;
}

.search-items{
    max-height: 300px;
    overflow-y: scroll;
}