小编San*_*ker的帖子

html, body, .sidebar-container, .sidebar-row {
    height: 100%;
}

.sidebar {
    background-color: #2C3544;
}

@media (min-width: 992px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 1000;
        display: block;
        background-color: #2C3544;
    }
}
img{
    margin: auto;
    display: block;
}
.sidebar-image{
    margin-top: 15px;
}
.sidebar-items{
    margin-top: 15px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="stylesheet"/>

<div class="container-fluid sidebar-container">
    <div class="row sidebar-row">
        <div class="col-md-2 sidebar">
            <div class="container-fluid">
                <div class="col-md-12 sidebar-image">
                    <img src="assets/logo-white.png" width="75px" height="75px"/>
                </div>
            </div>
            <div class="row sidebar-items">
                <div class="col-md-12">
                    <ul …