.codebox {
    border: 1px solid #e9e9e9;
    border-radius: 4px;
    display: inline-block;
    width: 100%;
    position: relative;
    margin: 0 0 16px;
    -webkit-transition: all .2s;
    transition: all .2s;
}

.codebox-demo {
    border-bottom: 1px solid #e9e9e9;
    padding: 42px 20px 50px;
}

.codebox-content {
    border-bottom: 1px solid #e9e9e9;
    padding: 15px 12px 20px;
}

.codebox-markdown {
    position: relative;
    padding: 17px 16px 15px 20px;
    border-radius: 0 0 4px 4px;
    -webkit-transition: background-color .4s;
    transition: background-color .4s;
    width: 100%;
    font-size: 12px;
}

.codebox-title {
    position: absolute;
    top: -9px;
    padding: 1px 8px;
    margin-left: -8px;
    color: #777;
    border-radius: 4px 4px 0 0;
    background: #fff;
    -webkit-transition: background-color .4s;
    transition: background-color .4s;
}

.expand-icon {
    position: absolute;
    right: 16px;
    top: 17px;
    cursor: pointer;
    width: 16px;
    height: 16px;
    line-height: 16px;
    text-align: center;
}

.expand-icon img {
    width: 100%;
    height: 100%;
}

.codeblock-wrapper {
    padding: 0 20px;
    background: #fff;
}