.letter_box {
    background: #e5e5e5 none repeat scroll 0 0;
    border: 2px outset #fff;
    border-radius: 5px;
    box-shadow: 4px 5px 3px rgba(50, 50, 50, 0.4);
    margin: 2px 0 20px;
    padding: 5px 10px 10px;
}

.letter_box:hover {
    border: 2px solid lightblue;
    background: #fffcef;
}

/*.letter_box:active {
    background: #fff4c9;
}

a .letter_box , a:link .letter_box , a:visited .letter_box {
    color: #000;
}*/

.letter_box  .btncontroll {
    display: inline-block;
}

.letter_box .date {
    float: right;
}

.letter_box .sender {
    float: left;
}

.letter_box hr {
    background: #555;
    height: 1px;
    margin: 1px 0 3px;
}

.letter_box .letter_subject {
    color: darkred;
    font-size: 20pt;
    font-weight: bold;
    margin: 5px 0 15px 0;
}

.letter_box .letter_message {
    background: #fff none repeat scroll 0 0;
    border: 1px solid #999;
    border-radius: 3px;
    margin: 5px 0;
    padding: 10px;
    text-align: justify;
}