style.css

.margin-top-default {
    margin-top: 20px;
}

.margin-top-medium {
    margin-top: 40px;
}

.margin-top-big {
    margin-top: 80px;
}

.margin-bottom-default {
    margin-bottom: 20px;
}

.margin-bottom-medium {
    margin-bottom: 40px;
}

.margin-bottom-big {
    margin-bottom: 80px;
}

.biggest-font-size {
    font-size: 128px;
}

.answer-box {
    position: relative;
    width: 100%;
    text-align: center;
    overflow: hidden;
    height: 40px;
    background-color: #00aaab;
    margin-bottom: 40px;
    padding: 10px;
    color: black;
}

.answer-line {
    position: absolute;
    width: 100%;
    top: 10px;
    left: 0;
    z-index: 0;
}

.block {
    position: relative;
    margin-left: 10px;
    width: 2%;
    height: 20px;
    background-color: green;
    z-index: 1;
}

.block-left {
    float: left;
}

.block-right {
    float: right;
}