body, div, p {
    font-family: Arial, Helvetica, sans-serif;
    box-sizing: border-box;
}
.bigger {
    font-size: 35px;
}
.big {
    font-size: 20px;
}
.medium {
    font-size: 18px;
}
.normal {
    font-size: 16px;
}
.small-2 {
    font-size: 15px;
}

.small {
    font-size: 13px;
}
.bold {
    font-weight: 600;
}
.no-margin {
    margin: 0px;
}
.no-margin-2 {
    margin: 4px 0px;
}
.no-margin-3 {
    margin: 8px 0px;
}