.help-block
{
    color: red;
    float: left; 
}

.linkButton { border: none; background: none; display: inline; color: blue; text-decoration: underline; }

.avatar-container {
    display: flex;
    justify-content: center;
    align-items: center;
}
.ms-list {
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 300px;
}

video {
    /* override other styles to make responsive */
    width: 95%    !important;
    height: auto   !important;
}

.video-embed {
    width:  95%;
    height: 30vw; /* 90*9/16 */

}