* {
    padding: 0;
    margin: 0;
}

body {
    background-color: #ccc;
    text-align: center;
}

.container{
    width: 600px;
    border: solid 2px white;
    margin: 20px auto;
    overflow: auto;
    line-height: 0;
}

img {
    width: 600px;
    height: 400px;
}

.thumb {
    width: 200px;
    height: 130px;
    float: left;
    box-sizing: border-box;
    border: solid 2px white;
}

.thumb:hover {
    opacity: 0.5;
    cursor: pointer;
}

@keyframes fade {
    to {
        opacity: 1;
    }
}

.fade {
    opacity: 0;
    animation: fade 0.5s forwards;
}

.active {
    opacity: 0.5;
}

.invert {
    background-color:#292929;
    color: white;
}

.button {
    width: 100px;
    height: 40px;
}

span {
    font-family: Arial, Helvetica, sans-serif;
    font-style: bold;
}