site.css

body {
    padding-bottom: 20px;
    font-size:      20px;
}

.body-content {
    padding-left:  15px;
    padding-right: 15px;
}

.sub-nav {
    position:        fixed;
    top:             51px;
    background:      #fff;
    border-bottom:   2px solid #ddd;
    width:           100%;
    height:          45px;
    display:         flex;
    justify-content: space-between;
}

.sub-nav button {
    align-self: center;
    display:    flex;
    position:   absolute;
    right:      10px;
}

.list {
    width:       31.5%;
    float:       left;
    margin-left: 20px;
    margin-top:  20px;
    font-size:   13px;
}

.list .panel-body {
    height:     100px;
    overflow-y: auto;
}

.btn-danger {
    margin-top: 0px !important;
}

/* Responsive: Portrait tablets and up */
@media screen and (min-width: 768px) {
    .body-content {
        padding: 0;
    }
}