body{
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    color: black;
    background: cornsilk;
}

a {
    color: rgb(92, 82, 179);
}

h1 {
    text-align: center;
}

.container {
    width: 840px;
    margin: 40px auto;
    overflow: auto;
}

.slider-inner {
    width: 800px;
    height: 600px;
    position: relative;
    overflow: hidden;
    float: left;
    padding: 3px;
}

.slider-inner img{
    display: none;
    width: 800px;
    height: 600px
}

.slider-inner img.active{
    display: inline-block;
}

.prev, .next{
    float: left;
    margin-top: 225px;
    cursor: pointer;
}

.prev {
    position: relative;
    margin-right: -120px;
    z-index: 100;
}

.next {
    position: relative;
    margin-left: -100px;
    z-index: 100;
}

h2 {
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
    text-decoration-color: crimson;
}