footer.html

<div class="container">
    <div class="row">
        <div class="col-lg-8 col-md-10 mx-auto">
            <ul class="list-inline text-center">
                <li class="list-inline-item">
                    <a href="mailto:zhaowei@outlook.com">
                <span class="fa-stack fa-lg">
                  <i class="fas fa-circle fa-stack-2x"></i>
                  <i class="fa fa-envelope fa-stack-1x fa-inverse"></i>
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                <li class="list-inline-item">
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                  <i class="fab fa-weibo fa-stack-1x fa-inverse"></i>
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                <li class="list-inline-item">
                    <a href="https://github.com/AaronZhao">
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                  <i class="fas fa-circle fa-stack-2x"></i>
                  <i class="fab fa-github fa-stack-1x fa-inverse"></i>
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            <p class="copyright text-muted">Copyright &copy; Aaron's Blog 2019</p>
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</div>