main.css

html,body {
    max-height:100vh;
}

.virtual-scroll {
    height:calc(100vh - 64px);
    overflow-y: scroll;
}

.author-tag {
    position: absolute;
    right: 0;
    top: 0px;
    padding: 3px 5px;
}

@media screen and (max-width:600px) {
    .virtual-scroll {
        height:calc(100vh - 232px);
        overflow-y: scroll;
    }
}

.title {
    font-size:1.5em;
    font-weight:100;
    text-shadow:1px 1px 4px #333;
}

.message {
    padding:10px
}

.no-margin-bottom {
    margin-bottom: 0;
}

.bottom-left {
    position: absolute;
    right:0;
    bottom:0;
}

.bottom-right {
    position: absolute;
    left:0;
    bottom:0;
}

.avatar-container {
    margin: 5px -5px;
    max-height: 100%;
}

.flex {
    display:flex;
}

.lightweight {
    font-weight: 100;
}
.heavyweight {
    font-weight: 900;
}

.message {
    padding: 7.5px !important;
}