Sane Flowdock Redesign with Stylebot (Browser) or userstyle.css (Native Flowdock OS X App)

userstyle.css

/*
 * Sane Flowdock Redesign Overrides
 * Option 1: Copy and paste CSS into Stylebot
 * Option 2: Save file as `userstyle.css` inside ~/Library/Application Support/Flowdock, hit CMD+R to reload app
 */

body {
    font-family: -apple-system, BlinkMacSystemFont, Arial, Helvetica, sans-serif !important;
}

/* 
 * Tivac's Changes
 * https://gist.github.com/tivac/d3d862896a32164ee023c17e8f99d172
*/

/* Hide the thread icons */

.bubble-container .bubble-icon {
    display: none !important;
}

/* Re-enable the left border */

.bubble-container .bubble {
    width: 100% !important;
    border-left-width: 5px !important;
    border-left-style: solid !important;
}

/* Thread views */

/* Hide the thread coloring */

#thread .bubble-container {
    display: none !important;
}

/* Move content over */

#thread .thread-comment-message .content {
    margin-left: 2.9rem !important;
}

/* End Tivac's Changes */

/* Show icons on hover */

.bubble-container:hover .bubble-icon {
    display: block !important;
}

/* Improve line height */

.msg-body, .compact #inbox li[class*=message] {
    line-height: 1.5 !important;
}

/* Increase max height with line height change in inbox activity */

.compact #inbox li[class*=message] .inbox-thread-item-single {
    max-height: 3.615rem !important;
}

/* Improve selected message background */

.selected-message {
    background: #f2f8fb !important;
}

/* Improve chat and thread messages */

.avatar-container {
    top: 8px !important;
    left: 20px !important;
}

.chat-message.message {
    padding-left: 5rem !important;
    border-top-width: 1px !important;
}

.thread-comment-message.message, .thread-file-message.message {
    padding-left: 1.1rem !important;
    padding-right: 1.1rem !important;
}

.thread-activities .message {
    background: #fff !important;
    border-top: 1px solid #e4e4e4 !important;
}

.message-author {
    color: #454545 !important;
}

.private .me.chat-message {
    background: #fff !important;   
    border-color: #F4F4F4 !important;
}

/* Improve message form */

.message-form fieldset {
    border-radius: 2px !important;
}

.message-form.focused fieldset {
    border-color: #666 !important;
}

.message-form.focused textarea {
    box-shadow: none !important;
}

.thread-indicator {
    display: none !important;
}

.input-button {
    border-bottom-right-radius: 2px !important;
}

If anyone can say how to get rid of the avatars (and the space they occupy) I'd be appreciative! I tried playing around a bit but I'm terrible at CSS. Just adding display: none to .avatar-container makes it disappear but leaves a big whitespace gap to the left of the message body