*,
*:before,
*:after {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

html,
body,
main {
    min-height: 100%
}

body {
    margin: 0;
    width: 100%;
    height: 100%;
}

main {
    width: 100%;
    height: auto;
}

a,
a:focus,
a:visited,
a:hover {
    color: inherit;
    text-decoration: none;
    outline: none;
}

img {
    vertical-align: middle;
    border: 0;
}

main {
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 400px;
    height:300px;
    margin: auto;
    border: 1px solid #ccc;
    border-radius:3px;
}

.scroller {
    width: 100%;
    height: 100%;
    overflow: auto;
}

.wrapper {
    width: 2000px;
    
}

.wrapper div {
    text-align: center;
    width: 200px;
    height: 200px;
    line-height: 200px;
    font-family: 'Roboto';
    float: left;
    color:#fff;
}

.wrapper div:not(:nth-child(10n)) {
    border-right: 1px solid #ccc;
}

.wrapper div:not(:nth-last-child(-n + 10)) {
    border-bottom: 1px solid #ccc;
}