main.css

.beta {
    font-size: 0.4em;
    color: #c0c0c0;
}

#sidebar-wrapper {
    width: 150px;
    height: 100%;
    position: fixed;
    padding: 0;
    margin: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.8em;
}

#navbar-list {
    display: block;
    width: 100%;
    padding: 0;
    margin: 0;
    position: relative;
}

#navbar-list li {
    float: none;
    display: block;
}

#navbar-list a {
    color: #999;
}

#navbar-list a:hover {
    color: #fff;
}

.active-link a {
    color: white !important;
}

#content-wrapper {
    position: relative;
    width: 85%;
    margin-left: 180px;
    padding: 10px;
}

#borrow-control {
    margin-left: 150px;
    background-color: rgba(0, 0, 0, 0.75);
}

.bottom-input {
    margin-left: 30px;
    padding: 5px;
}

#delete-record {
    margin-left: 10px;
    transition: 1s linear;
}

.scrollable {
    position: relative;
    overflow-y: scroll;
    position: relative;
    background-color: none;
    margin-bottom: 100px;
}

.table-content {
    position: absolute;
    /*cursor: pointer;   */
    margin-top: -30px;
}

.table-content thead {
    visibility: collapse;
}

.table-content tr:nth-child(odd) {
    background-color: rgb(230, 230, 250);
}

.data-row:hover {
    cursor: pointer;
    color: green;
}

.data-row:hover .delete-button {
    visibility: visible;
}

.delete-button {
    visibility: hidden;
    color: rgb(150, 0, 0);
    position: absolute;
    font-size: 20px;
    margin-top: -4px;
    /*font-weight: bolder;*/
}

.delete-button:hover {
    color: rgb(255, 0, 0);
    border-radius: 4px;
    border-color: black;
}