.panel-collapse:hover {
    background-color: white !important;
}

.loading-overlay-div {
    position: absolute;
    z-index: 100000;
    width: 100%;
    height: 100%;
    background-color: #2a3f5459;
}

    .loading-overlay-div img {
        width: 100px;
        position: absolute;
        margin: 20vh auto;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
.main-content {
    overflow: hidden;
    position: relative;
    width: 100%;
    min-height: 50vh;
}

.selected-mail-item {
    background-color: #d7dfdf;
}