Add variable "wait". When this variable set, the annotsroll wait ignore some annotations, and wait before printing an otherone so there is no superposition. Can be passed as an options

#log {
    height: 20em;
    overflow-y: scroll;
    background-color: #faa;
}

div {
    text-align:left;
}

.event-label {
    font-size: 2em;
}