*{
    margin: 0;
    padding: 0;
}


.nav{
    width: 320px;
    height: 50px;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: space-around;
    opacity: .7;
    transition: opacity .3s;
}

.nav:hover{
    opacity: 1;
}


.clr{
    height: 30px;
    width: 30px;
    background-color: blue;
    border-radius: 50%;
    border: 3px solid rgb(214, 214, 214);
    transition: transform .5s;
}

.clr:hover{
    transform: scale(1.2);
}

.clr:nth-child(1){
    background-color: #000;
}

.clr:nth-child(2){
    background-color: #EF626C;
}

.clr:nth-child(3){
    background-color: #fdec03;
}

.clr:nth-child(5){
    background-color: #00CED1;
}

.clr:nth-child(4){
    background-color: #24d102;
}

.clr:nth-child(6){
    background-color: #fff;
}


button{
    border: none;
    outline: 3px;
    padding: .6em 1em;
    border-radius: 3px;
    background-color: #0000cd;
    color: #fff;
}

.save{
    background-color: #3cb371;
}