demo.css

.blue {
    color: #2D4471
}

.blue-light {
    color: #4E638E
}

.blue-dark {
    color: #152B55
}

.purple {
    color: #3F3075
}

.purple-light {
    color: #605293
}

.purple-dark {
    color: #251758
}

.green {
    color: #236863
}

.green-light {
    color: #41837E
}

.green-dark {
    color: #0D4E4A
}

.border-green {
    border-color: #236863;
}

.border-lg {
    border-width: 1em;
}

.border-solid {
    border-style: solid;
}

.bg-blue {
    background-color: #2D4471
}

.bg-blue-light {
    background-color: #4E638E
}

.bg-blue-dark {
    background-color: #152B55
}

.bg-purple {
    background-color: #3F3075
}

.bg-purple-light {
    background-color: #605293
}

.bg-purple-dark {
    background-color: #251758
}

.bg-green {
    background-color: #236863
}

.bg-green-light {
    background-color: #41837E
}

.bg-green-dark {
    background-color: #0D4E4A
}

.white {
    color: white;
}

.container {
    margin: auto;
    padding: 10px;
}

.center {
    text-align: center;
}

.margin-sm {
    margin: 0.5em;
}

.padding-sm {
    padding: 0.5em;
}

.border-radius-sm {
    border-radius: 0.5em;
}

.height-100 {
    height: 100px;
}

.overflow-x-hidden {
    overflow-x: hidden;
}

.text-nowrap {
    white-space: nowrap;
}

.display-inline-block {
    display: inline-block;
}