cards.css

.app-container {
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    font-family: "Montserrat", sans-serif;
    padding: 0 50px
}

.app-container h1 {
    width: 70vw;
    padding: 10px;
    margin-left: 20px;
    color: #F8F8F8;
}

.app-container h4 {
    width: 70vw;
    padding: 0px 10px;
    margin-top: -20px;
    margin-left: 20px;
    color: #8acbff;
}

.app-container p {
    color: #F8F8F8;
}

.app-container p a {
    color: #fff399;
    text-decoration: none;
}

.app-container p a:hover {
    text-decoration: underline;
}

.card {
    border: 1px solid #102a49;
    box-sizing: border-box;
    box-shadow: 2px 2px 10px #102a49;
    background: #102a49;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    padding-left: 10px;
    flex: 1 1 45%;
    min-width: 320px;
    margin: 10px;
    transition: 0.5s;
}

.card:hover {
    transform: translateY(-5px);
    transition: 0.3s;
}

.card-container {
    display: flex;
}

.coin-data {
    display: flex;
    flex-direction: column;
    margin-left: 50px;
}

.coin-data p:nth-child(1) {
    margin-bottom: 13px;
    font-size: 1.3em;
}

.coin-data p:nth-of-type(2) {
    margin-top: 0;
    margin-bottom: 0.6em;
}

.coin-data p:nth-of-type(3) {
    margin-top: 0;
    margin-bottom: 0.8em;
}

.coin-data p span.legend {
    font-weight: bold;
}

.pos {
    color: #7cd382 !important;
}

.neg {
    color: #e86666 !important;
}

.card-container img {
    max-width: 75px;
    padding-left: 20px;
    padding-right: 0;
}

footer {
    height: 75px;
    width: 100%;
    bottom: 0;
    left: 0;
    padding: 25px 0px;
    background: #141414;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

footer ul {
    display: flex;
    flex-direction: row;
    margin: 0;
    padding: 0;
}

footer ul li {
    list-style-type: none;
}

footer ul a {
    font-size: 1.5em;
}

footer ul i {
    width: 1em;
    padding: 0px 10px;
    text-align: center;
    color: #555;
}

footer ul i:hover {
    color: #F8F8F8;
}

footer p {
    color: #555 !important;
    font-family: "Montserrat", sans-serif;
}

footer p span {
    color: #555;
}