html,body {
    margin: 0;
    padding: 0;
}

main, header {
    width: 500px;
    margin: 0 auto;
    position: relative;
}
.navbar {
    /* border: 2px solid red; */
    height: 50px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

.color-scheme-item {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    margin: 0 auto;
    padding: 0;
}


.color-value {
    border-radius: 50%;
    margin-top: 5px;
    font-weight: bolder;
    text-align: center;
    padding: 20px 0;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #ccc;
    border-radius: 4px;
}

select {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="color"] {
    padding: 0;
    width: 50px;
    height: 40px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.spinner {
    display: none;
    justify-content: center;
    align-items: center;
    width: 60px;
    margin: 0 auto;
    position: absolute;
    top: 120px;
    left: 0;
    bottom: 0;
    right: 0;
}

@media (max-width: 600px) {
    main, header {
        width: 100%;
        margin: 0 auto;
      position: relative;
    }

    .navbar {
    /* border: 2px solid red; */
    height: 50px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}
}