odoo/addons/mail/static/src/css/mail.css

/* ------------------------------ */
/* Wall                           */
/* ------------------------------ */

.oe_mail_wall {
    overflow: auto;
    padding: 5px;
}

.oe_mail_wall_search {
    width: 55%;
}

/* 2 columns view */
.oe_mail_wall_left {
    float: left;
    width: 65%;
}

.oe_mail_wall_right {
    float: right;
    width: 34%;
}

.oe_mail_wall_thread div.oe_mail_thread_act .oe_mail_action_textarea {
    height: 20px;
    padding: 2px;
}

.oe_mail_wall_more {
    text-align: center;
}

/* ------------------------------ */
/* RecordThread                   */
/* ------------------------------ */

.oe_mail_recthread {
    overflow: auto;
    padding: 5px 5px 5px 5px;
}

/* Left-side CSS */
.oe_mail_actions {
    margin-bottom: 10px;
}

.oe_mail_followers {
    margin-bottom: 10px;
}

.oe_mail_followers_action, .oe_mail_followers_display {
}

/* RecordThread: 2 columns view */
.oe_mail_recthread_left {
    float: left;
    width: 55%;
}

.oe_mail_recthread_right {
    float: right;
    width: 25%;
    margin-right: 5%;
}

.oe_mail_button_follow, .oe_mail_button_unfollow {
    width: 120px;
}

.oe_mail_button_followers {
    display: inline;
    width: 120px;
}

.oe_mail_followers h4 {
    margin: 0 0 8px;
}

/* ------------------------------ */
/* ThreadDisplay                  */
/* ------------------------------ */

div.oe_mail_thread_act {
    white-space: normal;
    margin-bottom: 5px;
}

div.oe_mail_thread_display {
    white-space: normal;
    margin-bottom: 5px;
}

div.oe_mail_thread_subthread {
    margin-top: 8px;
    padding-left: 5%;
}

div.oe_mail_thread_more {
    border-bottom: 1px solid #D2D9E7;
}

div.oe_mail_thread_msg {
    padding: 4px;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    -o-border-radius: 4px;
    -ms-border-radius: 4px;
    border-radius: 4px;
}

div.notification {
    background: #E0E0E0;
}

div.email {
    background: #E0E0E0;
}

div.oe_mail_thread_msg:after, div.oe_mail_thread_act:after {
    content: "";
    display: block;
    clear: both; 
}

.oe_mail_msg_content {
    margin-left: 60px;
}

.oe_mail_action_textarea {
    height: 50px;
    padding: 5px;
}

.oe_mail_msg_image {
    margin-right: 8px;
    width: 45px;
    height: 45px;
    text-align: center;
    overflow: hidden;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    -o-border-radius: 4px;
    -ms-border-radius: 4px;
    border-radius: 4px;
    -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
    -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
    -o-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
    -box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
    clip: rect(5px, 40px, 45px, 0px);
}

.oe_mail_msg_p {
    padding: 0;
    margin: 0;
}

.oe_mail_msg_p_email_header {
    border-bottom: 1px solid #D2D9E7;
}

.oe_mail_msg_body a.reduce, .oe_mail_msg_body_short a.expand {
    color: #4E43E7;
}

/* ------------------------------ */
/* Styling (should be openerp)    */
/* ------------------------------ */

input.oe_mail, textarea.oe_mail {
    width: 100%;
    padding: 4px;
    font-size: 12px;
    border: 1px solid #cccccc;
    -webkit-transition: border linear 0.2s, box-shadow linear 0.2s;
    -moz-transition: border linear 0.2s, box-shadow linear 0.2s;
    -ms-transition: border linear 0.2s, box-shadow linear 0.2s;
    -o-transition: border linear 0.2s, box-shadow linear 0.2s;
    transition: border linear 0.2s, box-shadow linear 0.2s;
    -moz-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
    -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
    -box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
}

input.oe_mail:focus, textarea.oe_mail:focus {
    outline: 0;
    border-color: rgba(82, 168, 236, 0.8);
    -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
    -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
    -box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
}

p.oe_mail_msg {
    padding: 0;
    margin: 0;
}

.oe_mail_oe_right {
    float: right;
    margin-right: 8px;
}

.oe_mail_oe_left {
    float: left;
    margin-right: 8px;
}

.oe_mail_oe_fade {
    font-size: 12px;
    color: #888888;
}

.oe_mail_oe_bold {
    font-weight: bold;
}

a.oe_mail_oe_intlink {
    color: #8786b7;
}

.oe_mail_oe_warning, .oe_mail_oe_warning a {
    color: #C03000;
}

.oe_mail_oe_space {
    margin-left: 15px;
}