JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>LymphTrack</title>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet">
        <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.13/css/all.css" crossorigin="anonymous">
        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
        <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
        <link rel="stylesheet" href="static/css/custom.css">
        <link rel="stylesheet" href="static/css/sidebar.css">        
        <link rel="shortcut icon" type="image/png" href="static/img/favicon.ico" />
        
        
    </head>
    <body>
               

    <div class="container-fluid">
        <div class="circles">
            <div class="row">
                <div class="col-md-6">
                    <div class="circle-title">Total Users</div>
                    <div class="circle"></div>
                    <div class="circle-text">6</div>
                </div>
                <div class="col-md-6">
                    <div class="circle-title">Active Users</div>
                    <div class="circle">6</div>
                </div>
            </div>
            <div class="row">
                <div class="col-md-6">
                    <div class="circle-title">Total Logged</div>
                    <div class="circle">2,497</div>
                </div>
                <div class="col-md-6">
                    <div class="circle-title">Overall</div>
                    <div class="circle">76%</div>
                </div>
            </div>
        </div>
    </div>


            </div>
        </div>
        <!-- page-wrapper -->

        <script...

CSS

body {
    font-size: .9rem;
}

.navbar {
    padding-left: 340px;
}

.login-welcome {
    position: absolute;
    top: 15%;
    left: 40%;
    display: block;
}

.welcome {
    font-weight: 600px;
    font-size: 30px;
    color: #653487;
}

.form-login {
    width: 340px;
    margin: 200px auto;
}

.form-login form {
    margin-bottom: 15px;
    background: #f7f7f7;
    box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.3);
    padding: 30px;
    width: 100%;
}
.form-login h2 {
    margin: 0 0 15px;
    text-align: center;
}

.btn {        
    min-height: 38px;
    border-radius: 2px;
    font-size: 15px;
    font-weight: bold;
    background-color: #653487;
}

.circle {
    height: 300px;
    width: 300px;
    background-color: #d6d6d6;
    border-radius: 50%;
    line-height: 100px;
    text-align: center;
    color: white;
    font-size: 7.5em;
    font-weight: bold;
    position: relative;
}

.circle-text {
    text-align: center;
    color: white;
    font-size: 7.5em;
    font-weight: bold;
    position: relative;
}

.circle:before {
    height: 0px;
    width: 0px;
    line-height: 100px;
    text-align: center;
    position: absolute;
}


.circle-title {
    color: #653487;
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    padding: 30px;
}

.page-wrapper {
    height: 100vh;
}

.page-wrapper .sidebar-wrapper {
    left: 0px;
}

@media screen and (min-width: 768px) {
    .page-wrapper .page-content {
        padding-left: 300px;
    }
}




/*--------------------------page-content-----------------------------*/

.page-wrapper .page-content {
    display: inline-block;
    width: 100%;
    padding-left: 300px;
    padding-top: 20px;
}

.page-wrapper .page-content>div {
    padding: 20px 40px;
}

.page-wrapper .page-content {
    overflow-x: hidden;
}

/*----------------  Scroll bar style   --------------- */

.mCSB_scrollTools {
    width: 6px;
}

.mCSB_inside>.mCSB_container {
    margin-right: 0px;
}