.js_follow[data-follow='on'] .js_follow_btn ,
.js_follow[data-follow='off'] .js_unfollow_btn {
    display: none;
}

.email_preview_border {
    overflow:                 hidden !important;
    border:                   2px solid grey;
    height:                   300px;
}
.email_preview {
    -webkit-transform:        scale(.50);
    -ms-transform:            scale(.50);
    transform:                scale(.50);
    -webkit-transform-origin: 0 0; 
    -ms-transform-origin:     0 0; 
    transform-origin:         0 0; 
    margin:                   0 0px -300px 0;
}

.o_mail_body {
    width: 620px;
    margin-left: 16px;
}