body {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

#content {
    background: #eee;
    height: calc(100vh - 50px);
    margin-left: 250px;
    padding-top: 50px;
    transition: margin-left 0.25s, background 0.25s;

    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-end;
    align-content: flex-start;
    align-items: flex-start;
}

#messages {
    overflow-y: scroll;
    width: 100% !important;
}

#messages > li {
    margin-left: 5%;
    width: 90%;
    list-style-type: none;
}

#messages > li span {
    padding: 5px;
}

#messages > li span[name=sender] {
    font-weight: bold;
}

#messages > li span[name=time] {
    text-align: right;
    white-space: nowrap;
}

#sendbox {
    margin-left: 5%;
    width: 90%;
}
#sendbox > input {
    font-size: 1.6rem;
    width: 100%;
}