colourchange.css

.pagecontent {
    margin-left: 0 auto;
}

.lilboxes {
    display: flex;
    justify-content: space-between;
    width: 600px;
}

.boxcolour {
    height: 50px;
    width: 50px;
    border: 3px solid black;
}

#one {
    background: #740932;
}

#two {
    background: #FE9D5C;
}

#three {
    background: #CF5C14;
}

#four {
    background: #20B89F;
}

#bigbox {
    height: 150px;
    width: 300px;
    border: 3px solid black;
    margin-top: 20px;
    margin-bottom: 20px;
    float: right;
    margin-right: 300px;
}

#five {
    background: #147A60;
}

#six {
    background: #334691;
}

#seven {
    background: #418324;
}

#eight {
    background: #d62b8c;
}

.arrow {
    font-size: 40px;
    text-align: center;
    float: left;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-left: 100px;
    padding-top: 40px;
}

.arrow a {
    color: darkslategray;
    text-decoration: none;
}