Edit in JSFiddle

<link href="https://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.3.1/css/all.min.css" rel="stylesheet">

<body class="bg-default">
  <div class="main-content">
    <div class="header bg-gradient-primary pb-8 pt-5 pt-md-8">
      <div class="container-fluid">
        <h2 class="mb-5 text-white">Stats Card</h2>
        <div class="header-body">
          <div class="row">
            <div class="col-xl-3 col-lg-6">
              <div class="card card-stats mb-4 mb-xl-0">
                <div class="card-body">
                  <div class="row">
                    <div class="col">
                      <h5 class="card-title text-uppercase text-muted mb-0">Traffic</h5>
                      <span class="h2 font-weight-bold mb-0">350,897</span>
                    </div>
                    <div class="col-auto">
                      <div class="icon icon-shape bg-danger text-white rounded-circle shadow">
                        <i class="fas fa-chart-bar"></i>
                      </div>
                    </div>
                  </div>
                  <p class="mt-3 mb-0 text-muted text-sm">
                    <span class="text-success mr-2"><i class="fa fa-arrow-up"></i> 3.48%</span>
                    <span class="text-nowrap">Since last month</span>
                  </p>
                </div>
              </div>
            </div>
            <div class="col-xl-3 col-lg-6">
              <div class="card card-stats mb-4 mb-xl-0">
                <div class="card-body">
                  <div class="row">
                    <div class="col">
                      <h5 class="card-title text-uppercase text-muted mb-0">New users</h5>
                      <span class="h2 font-weight-bold mb-0">2,356</span>
                    </div>
                    <div class="col-auto">
                      <div class="icon icon-shape bg-warning text-white rounded-circle shadow">
                        <i class="fas fa-chart-pie"></i>
                      </div>
                    </div>
                  </div>
                  <p class="mt-3 mb-0 text-muted text-sm">
                    <span class="text-danger mr-2"><i class="fas fa-arrow-down"></i> 3.48%</span>
                    <span class="text-nowrap">Since last week</span>
                  </p>
                </div>
              </div>
            </div>
            <div class="col-xl-3 col-lg-6">
              <div class="card card-stats mb-4 mb-xl-0">
                <div class="card-body">
                  <div class="row">
                    <div class="col">
                      <h5 class="card-title text-uppercase text-muted mb-0">Sales</h5>
                      <span class="h2 font-weight-bold mb-0">924</span>
                    </div>
                    <div class="col-auto">
                      <div class="icon icon-shape bg-yellow text-white rounded-circle shadow">
                        <i class="fas fa-users"></i>
                      </div>
                    </div>
                  </div>
                  <p class="mt-3 mb-0 text-muted text-sm">
                    <span class="text-warning mr-2"><i class="fas fa-arrow-down"></i> 1.10%</span>
                    <span class="text-nowrap">Since yesterday</span>
                  </p>
                </div>
              </div>
            </div>
            <div class="col-xl-3 col-lg-6">
              <div class="card card-stats mb-4 mb-xl-0">
                <div class="card-body">
                  <div class="row">
                    <div class="col">
                      <h5 class="card-title text-uppercase text-muted mb-0">Performance</h5>
                      <span class="h2 font-weight-bold mb-0">49,65%</span>
                    </div>
                    <div class="col-auto">
                      <div class="icon icon-shape bg-info text-white rounded-circle shadow">
                        <i class="fas fa-percent"></i>
                      </div>
                    </div>
                  </div>
                  <p class="mt-3 mb-0 text-muted text-sm">
                    <span class="text-success mr-2"><i class="fas fa-arrow-up"></i> 12%</span>
                    <span class="text-nowrap">Since last month</span>
                  </p>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <!-- Page content -->
  </div>
  <footer class="footer">
    <div class="row align-items-center justify-content-xl-between">
      <div class="col-xl-6 m-auto text-center">
        <div class="copyright">
          <p>Made with <a href="https://www.creative-tim.com/product/argon-dashboard" target="_blank">Argon Dashboard</a> by Creative Tim</p>
        </div>
      </div>
    </div>
  </footer>
</body>
:root {
  --blue: #5e72e4;
  --indigo: #5603ad;
  --purple: #8965e0;
  --pink: #f3a4b5;
  --red: #f5365c;
  --orange: #fb6340;
  --yellow: #ffd600;
  --green: #2dce89;
  --teal: #11cdef;
  --cyan: #2bffc6;
  --white: #fff;
  --gray: #8898aa;
  --gray-dark: #32325d;
  --light: #ced4da;
  --lighter: #e9ecef;
  --primary: #5e72e4;
  --secondary: #f7fafc;
  --success: #2dce89;
  --info: #11cdef;
  --warning: #fb6340;
  --danger: #f5365c;
  --light: #adb5bd;
  --dark: #212529;
  --default: #172b4d;
  --white: #fff;
  --neutral: #fff;
  --darker: black;
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --font-family-sans-serif: Open Sans, sans-serif;
  --font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

@-ms-viewport {
  width: device-width;
}

figcaption,
footer,
header,
main,
nav,
section {
  display: block;
}

body {
  font-family: Open Sans, sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
  text-align: left;
  color: #525f7f;
  background-color: #f8f9fe;
}

[tabindex='-1']:focus {
  outline: 0 !important;
}

h2,
h5 {
  margin-top: 0;
  margin-bottom: .5rem;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

dfn {
  font-style: italic;
}

strong {
  font-weight: bolder;
}

a {
  text-decoration: none;
  color: #5e72e4;
  background-color: transparent;
  -webkit-text-decoration-skip: objects;
}

a:hover {
  text-decoration: none;
  color: #233dd2;
}

a:not([href]):not([tabindex]) {
  text-decoration: none;
  color: inherit;
}

a:not([href]):not([tabindex]):hover,
a:not([href]):not([tabindex]):focus {
  text-decoration: none;
  color: inherit;
}

a:not([href]):not([tabindex]):focus {
  outline: 0;
}

caption {
  padding-top: 1rem;
  padding-bottom: 1rem;
  caption-side: bottom;
  text-align: left;
  color: #8898aa;
}

button {
  border-radius: 0;
}

button:focus {
  outline: 1px dotted;
  outline: 5px auto -webkit-focus-ring-color;
}

input,
button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  margin: 0;
}

button,
input {
  overflow: visible;
}

button {
  text-transform: none;
}

button,
[type='reset'],
[type='submit'] {
  -webkit-appearance: button;
}

button::-moz-focus-inner,
[type='button']::-moz-focus-inner,
[type='reset']::-moz-focus-inner,
[type='submit']::-moz-focus-inner {
  padding: 0;
  border-style: none;
}

input[type='radio'],
input[type='checkbox'] {
  box-sizing: border-box;
  padding: 0;
}

input[type='date'],
input[type='time'],
input[type='datetime-local'],
input[type='month'] {
  -webkit-appearance: listbox;
}

legend {
  font-size: 1.5rem;
  line-height: inherit;
  display: block;
  width: 100%;
  max-width: 100%;
  margin-bottom: .5rem;
  padding: 0;
  white-space: normal;
  color: inherit;
}

[type='number']::-webkit-inner-spin-button,
[type='number']::-webkit-outer-spin-button {
  height: auto;
}

[type='search'] {
  outline-offset: -2px;
  -webkit-appearance: none;
}

[type='search']::-webkit-search-cancel-button,
[type='search']::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  font: inherit;
  -webkit-appearance: button;
}

[hidden] {
  display: none !important;
}

h2,
h5,
.h2,
.h5 {
  font-family: inherit;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: .5rem;
  color: #32325d;
}

h2,
.h2 {
  font-size: 1.25rem;
}

h5,
.h5 {
  font-size: .8125rem;
}

.container-fluid {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: 15px;
  padding-left: 15px;
}

.row {
  display: flex;
  margin-right: -15px;
  margin-left: -15px;
  flex-wrap: wrap;
}

.col,
.col-auto,
.col-lg-6,
.col-xl-3,
.col-xl-6 {
  position: relative;
  width: 100%;
  min-height: 1px;
  padding-right: 15px;
  padding-left: 15px;
}

.col {
  max-width: 100%;
  flex-basis: 0;
  flex-grow: 1;
}

.col-auto {
  width: auto;
  max-width: none;
  flex: 0 0 auto;
}

@media (min-width: 992px) {
  .col-lg-6 {
    max-width: 50%;
    flex: 0 0 50%;
  }
}

@media (min-width: 1200px) {
  .col-xl-3 {
    max-width: 25%;
    flex: 0 0 25%;
  }
  .col-xl-6 {
    max-width: 50%;
    flex: 0 0 50%;
  }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  word-wrap: break-word;
  border: 1px solid rgba(0, 0, 0, .05);
  border-radius: .375rem;
  background-color: #fff;
  background-clip: border-box;
}

.card-body {
  padding: 1.5rem;
  flex: 1 1 auto;
}

.card-title {
  margin-bottom: 1.25rem;
}

@keyframes progress-bar-stripes {
  from {
    background-position: 1rem 0;
  }
  to {
    background-position: 0 0;
  }
}

.bg-info {
  background-color: #11cdef !important;
}

a.bg-info:hover,
a.bg-info:focus,
button.bg-info:hover,
button.bg-info:focus {
  background-color: #0da5c0 !important;
}

.bg-warning {
  background-color: #fb6340 !important;
}

a.bg-warning:hover,
a.bg-warning:focus,
button.bg-warning:hover,
button.bg-warning:focus {
  background-color: #fa3a0e !important;
}

.bg-danger {
  background-color: #f5365c !important;
}

a.bg-danger:hover,
a.bg-danger:focus,
button.bg-danger:hover,
button.bg-danger:focus {
  background-color: #ec0c38 !important;
}

.bg-default {
  background-color: #172b4d !important;
}

a.bg-default:hover,
a.bg-default:focus,
button.bg-default:hover,
button.bg-default:focus {
  background-color: #0b1526 !important;
}

.rounded-circle {
  border-radius: 50% !important;
}

.align-items-center {
  align-items: center !important;
}

@media (min-width: 1200px) {
  .justify-content-xl-between {
    justify-content: space-between !important;
  }
}

.shadow {
  box-shadow: 0 0 2rem 0 rgba(136, 152, 170, .15) !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mr-2 {
  margin-right: .5rem !important;
}

.mt-3 {
  margin-top: 1rem !important;
}

.mb-4 {
  margin-bottom: 1.5rem !important;
}

.mb-5 {
  margin-bottom: 3rem !important;
}

.pt-5 {
  padding-top: 3rem !important;
}

.pb-8 {
  padding-bottom: 8rem !important;
}

.m-auto {
  margin: auto !important;
}

@media (min-width: 768px) {
  .pt-md-8 {
    padding-top: 8rem !important;
  }
}

@media (min-width: 1200px) {
  .mb-xl-0 {
    margin-bottom: 0 !important;
  }
}

.text-nowrap {
  white-space: nowrap !important;
}

.text-center {
  text-align: center !important;
}

.text-uppercase {
  text-transform: uppercase !important;
}

.font-weight-bold {
  font-weight: 600 !important;
}

.text-white {
  color: #fff !important;
}

.text-success {
  color: #2dce89 !important;
}

a.text-success:hover,
a.text-success:focus {
  color: #24a46d !important;
}

.text-warning {
  color: #fb6340 !important;
}

a.text-warning:hover,
a.text-warning:focus {
  color: #fa3a0e !important;
}

.text-danger {
  color: #f5365c !important;
}

a.text-danger:hover,
a.text-danger:focus {
  color: #ec0c38 !important;
}

.text-white {
  color: #fff !important;
}

a.text-white:hover,
a.text-white:focus {
  color: #e6e6e6 !important;
}

.text-muted {
  color: #8898aa !important;
}

@media print {
  *,
  *::before,
  *::after {
    box-shadow: none !important;
    text-shadow: none !important;
  }
  a:not(.btn) {
    text-decoration: underline;
  }
  p,
  h2 {
    orphans: 3;
    widows: 3;
  }
  h2 {
    page-break-after: avoid;
  }
  @ page {
    size: a3;
  }
  body {
    min-width: 992px !important;
  }
}

figcaption,
main {
  display: block;
}

main {
  overflow: hidden;
}

.bg-yellow {
  background-color: #ffd600 !important;
}

a.bg-yellow:hover,
a.bg-yellow:focus,
button.bg-yellow:hover,
button.bg-yellow:focus {
  background-color: #ccab00 !important;
}

.bg-gradient-primary {
  background: linear-gradient(87deg, #5e72e4 0, #825ee4 100%) !important;
}

.bg-gradient-primary {
  background: linear-gradient(87deg, #5e72e4 0, #825ee4 100%) !important;
}

@keyframes floating-lg {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(15px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes floating {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(10px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes floating-sm {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(5px);
  }
  100% {
    transform: translateY(0px);
  }
}

[class*='shadow'] {
  transition: all .15s ease;
}

.text-sm {
  font-size: .875rem !important;
}

.text-white {
  color: #fff !important;
}

a.text-white:hover,
a.text-white:focus {
  color: #e6e6e6 !important;
}

[class*='btn-outline-'] {
  border-width: 1px;
}

.card-stats .card-body {
  padding: 1rem 1.5rem;
}

.main-content {
  position: relative;
}

@media (min-width: 768px) {
  .main-content .container-fluid {
    padding-right: 39px !important;
    padding-left: 39px !important;
  }
}

.footer {
  padding: 2.5rem 0;
  background: #f7fafc;
}

.footer .copyright {
  font-size: .875rem;
}

.header {
  position: relative;
}

.icon {
  width: 3rem;
  height: 3rem;
}

.icon i {
  font-size: 2.25rem;
}

.icon-shape {
  display: inline-flex;
  padding: 12px;
  text-align: center;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
}

.icon-shape i {
  font-size: 1.25rem;
}

@media (min-width: 768px) {
  @ keyframes show-navbar-dropdown {
    0% {
      transition: visibility .25s, opacity .25s, transform .25s;
      transform: translate(0, 10px) perspective(200px) rotateX(-2deg);
      opacity: 0;
    }
    100% {
      transform: translate(0, 0);
      opacity: 1;
    }
  }
  @keyframes hide-navbar-dropdown {
    from {
      opacity: 1;
    }
    to {
      transform: translate(0, 10px);
      opacity: 0;
    }
  }
}

@keyframes show-navbar-collapse {
  0% {
    transform: scale(.95);
    transform-origin: 100% 0;
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes hide-navbar-collapse {
  from {
    transform: scale(1);
    transform-origin: 100% 0;
    opacity: 1;
  }
  to {
    transform: scale(.95);
    opacity: 0;
  }
}

p {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.7;
}

}
/* This snippet doesn't have javascript */