body {
    font-family: 'Noto Sans', sans-serif;
    background-color: #000000;
    text-transform: uppercase;
    font-size: .75rem;
    margin: 0;
    
}

.container{
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    line-height: .75;
    background-color: rgb(240, 240, 240);
    overflow: hidden;
    width: 100%;
    margin: 0;
}

/* Nav */
.nav {
    list-style-type: none;
    padding: 0;
    background-color: rgb(0, 169, 255);
    overflow: hidden;
    width: 100%;
    margin: 0;

}

.navButton {
    color: rgb(255, 255, 255);
    background-color: rgb(0, 169, 255);
    border: none;
    background: none;
    text-align: center;
    text-decoration: none;
    font-size: 1.5rem;
    text-transform: uppercase;
    width: 25%;
    width: calc(100% / 4);
    display: inline;
    float: left;
    cursor: pointer;
    outline: none;
}

.navButton:hover {
    color: rgb(0, 169, 255);
    background-color: rgb(240, 240, 240);
}

.easy {
    float: left;
}

.hard {
    float: left;
};

.reset {
    float: right;
}

.selected {
    color: rgb(0, 169, 255);
    background-color: rgb(240, 240, 240);
}

/* Figure */

.colors {
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    width: 50%;
}

.square {
    flex-wrap: wrap;
    width: 160px;
    height: 160px;
    margin: 1rem;
    border-radius: 25px;
    -webkit-box-shadow: 0px 15px 19px 2px rgb(120, 120, 120); 
    box-shadow: 0px 15px 19px 2px rgb(120, 120, 120);
    transition: .25s;
}

.square:hover {
    transform: scale(1.25);
    z-index: 1;
    box-shadow: none;
}