.history button {
    cursor: pointer;
    float: left;
    margin: 5px;
    height: 29px;
    border: none;
}

.history button[disabled], .history button[disabled]:hover {
    background-position: 0 29px !important;
    cursor: default;
    opacity: 0.25;
}

.history button:hover {
    background-position: 0 58px !important;
}

#btnHistoryBack {
    background: url('Images/icon-back.png');
    width: 29px;
}

#btnHistoryForward {
    background: url('Images/icon-next.png');
    width: 29px;
}

#btnHistoryDown {
    background: url('Images/icon-down.png');
    width: 29px;
}

#btnSearch {
    background: url('Images/icon-search.png');
    width: 29px;
}

#historyList {
    background: white;
    border: 1px solid steelblue;
    border-radius: 5px;
    box-shadow: 4px 4px 4px #808080;
    overflow: hidden;
    overflow-y: auto;
    max-height: 50%;
    transition: all 0.5s ease 0s;    
}

#historyList.hidden {
    opacity: 0;
    transform: translate(0, -10px);
    visibility: hidden;
}

#historyList ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#historyList li {
    cursor: pointer;
    padding: 5px 10px;
    border: 1px solid transparent;
    font-family: Arial, Verdana, Helvetica,sans-serif;
    font-size: 12px;
}

#historyList li:hover {
    background: #c2e4ff;
    border: 1px solid #ccc;
}

#historyList li:active span {
    outline: 1px dotted #808080;
}

#historyList li.selected {
    font-weight: bold;
}