.md-editor {
    height: calc(100% - 50px);
}

.md-editor textarea {
    height: 100%;
    padding: 6px;
    font-family: Menlo,Monaco,Consolas,"Courier New",monospace;
    font-size: 11px;
    outline: 0;
    margin: 0;
    width: 100%;
}

.md-preview {
    height: 100% !important;
    min-height: 0px !important;
    overflow: scroll;
    min-width: 100%;
    padding: 6px;
}

.md-editor .btn-group {
    margin-bottom: 5px;
}

.md-preview h1 {
    font-size: 36px;
}

.md-preview h2 {
    font-size: 30px;
}

.md-preview h3 {
    font-size: 24px;
}

.md-preview h3 {
    font-size: 18px;
}

.md-preview h4 {
    font-size: 14px;
}

.md-preview a {
    font-size: inherit;
}

.item-link {
    color: #337ab7;
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted black;
}

.item-link .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 100%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    opacity 0.9s;
}

.item-link .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -4px;
    border-width: 4px;
    border-style: solid;
    border-color: #555 transparent transparent transparent;
}

.item-link:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.item-link .tooltiptext>span {
    color: white;
    font-size: 10px;
}

.item-link .tooltiptext>span:hover {
    text-decoration: underline;
}