.color {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: auto;
    background-color: #c68736;
    /*background: rgb(0,0,119);
    background: linear-gradient(180deg, rgba(0,0,119,1) 0%, rgba(36,75,213,1) 15%, rgba(253,187,45,1) 100%);*/
}

.color:before {
    content: ' ';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background-image: url('../assets/fireworks.jpg');
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: cover;
    transition: opacity 1s;
    z-index: -1;
}

.color.fireworks:before {
    opacity: 1;
}

.img-selectable {
    cursor: pointer;
    border: 5px solid transparent;
    border-radius: 5px;
}

.img-selectable:hover {
    border: 5px solid yellow;
}