body {
    background: black;
    margin: 0;
    font-family: montserrat, Arial;
}

.square {
    width: 29%;
    background: blue;
    padding-bottom: 30%;
    float: left;
    margin: 1.66%;
    border-radius: 50%;
    -webkit-transition: background 0.6s;
    -moz-transition: background 0.6s;
    transition: background 0.6s;
    border: 1px solid rgba(211, 211, 211, .3);
}

h1 {
    font-weight: normal;
    text-align: center;
    line-height: 1.1;
    color: white;
    background-color: #1c03fc;
    /* background: -webkit-linear-gradient(to left, white, red, blue, purple, black) fixed;
    background: -moz-linear-gradient(to left, white, red, blue, purple, black) fixed;
    background: -o-linear-gradient(to left, white, red, blue, purple, black) fixed;
    background: linear-gradient(to left, white, red, blue, purple, black) fixed; */
    margin: 0;
    text-transform: uppercase;
    padding: 20px 0;
}

#container {
    max-width: 600px;
    margin: 20px auto;
}

#colorDisplay {
    font-size: 150%;
}

#questionMark {
    font-size: 150%;
}

#message {
    display: inline-block;
    width: 20%;
}

#stripe {
    background: white;
    height: 30px;
    text-align: center;
}

.selected {
    background: #1c03fc;
    color: white;
    border: none;
}

button {
    border: none;
    background: none;
    text-transform: uppercase;
    height: 100%;
    font-weight: 700;
    color: #1c03fc;
    letter-spacing: 1px;
    font-size: inherit;
    -webkit-transition: background 0.3s;
    -moz-transition: background 0.3s;
    transition: all 0.3s;
    outline: none;
}

button:hover {
    background: #1c03fc;
    color: white;
}