a {
    color: #03A9F4;
}

.row {
    &.padded-top {
        padding-top:20px;
    }
    &.padded-bottom {
        padding-bottom:20px;
    }
}

.loader {
    border: 8px solid #f3f3f3; /* Light grey */
    border-top: 8px solid #3498db; /* Blue */
    border-bottom: 8px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 34px;
    height: 34px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
a {
    color: #03A9F4;
}

.margin-top {
    margin-top:20px;
}
.margin-bottom {
    margin-bottom:20px;
}
.padded-top {
    padding-top:20px;
}
.padded-bottom {
    padding-bottom:20px;
}

.loader {
    border: 8px solid #f3f3f3; /* Light grey */
    border-top: 8px solid #3498db; /* Blue */
    border-bottom: 8px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 34px;
    height: 34px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
Make margin/padding top/bottom styling generic
Make margin/padding top/bottom styling generic
