* {
    box-sizing: border-box;
}

#gallery {
    position: relative;
    margin: auto;
    width: 80%;
}

#image {
    height: 400px;
    width: 100%;
    background-repeat: no-repeat;
    background-size: cover;
}

#images {
    
}

#images img {
    display: block;
    float: left;
    width: 25%;
    height: 100px;
}

#prev {
    position: absolute;
    top: 150px;
    height: 100px;
    width: 50px;
    border: 2px solid white;
}

#next {
    position: absolute;
    top: 150px;
    right: 0;
    height: 100px;
    width: 50px;
    border: 2px solid white;
}

#image h1 {
    display: block;
    margin: auto;
    margin-top: 30px;
    text-align: center;
    color: white;
}