Bootstrap CSS Accordion 1

                <div class="container">
    
    <div class="row">
        <div class="col-md-offset-3 col-md-6">
            <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingOne">
                        <h4 class="panel-title">
                            <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
                                Section 1
                            </a>
                        </h4>
                    </div>
                    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
                        <div class="panel-body">
                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent nisl lorem, dictum id pellentesque at, vestibulum ut arcu. Curabitur erat libero, egestas eu tincidunt ac, rutrum ac justo. Vivamus condimentum laoreet lectus, blandit posuere tortor aliquam vitae. Curabitur molestie eros. </p>
                        </div>
                    </div>
                </div>

                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingTwo">
                        <h4 class="panel-title">
                            <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
                                Section 2
                            </a>
                        </h4>
                    </div>
                    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">
                        <div class="panel-body">
                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent nisl lorem, dictum id pellentesque at, vestibulum ut arcu. Curabitur erat libero, egestas eu tincidunt ac, rutrum ac justo. Vivamus condimentum laoreet lectus, blandit posuere tortor aliquam vitae. Curabitur molestie eros. </p>
                        </div>
                    </div>
                </div>

                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingThree">
                        <h4 class="panel-title">
                            <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
                                Section 3
                            </a>
                        </h4>
                    </div>
                    <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree">
                        <div class="panel-body">
                            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent nisl lorem, dictum id pellentesque at, vestibulum ut arcu. Curabitur erat libero, egestas eu tincidunt ac, rutrum ac justo. Vivamus condimentum laoreet lectus, blandit posuere tortor aliquam vitae. Curabitur molestie eros. </p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
            

                h1{ padding: 0 0 30px; }
a:hover,a:focus{
    text-decoration: none;
    outline: none;
}
#accordion .panel{
    border: none;
    border-radius: 3px;
    box-shadow: none;
    margin-bottom: 15px;
}
#accordion .panel-heading{
    padding: 0;
    border: none;
    border-radius: 3px;
}
#accordion .panel-title a{
    display: block;
    padding: 12px 15px 12px 50px;
    background: linear-gradient(to bottom, #fefefe, #cdcdcd);
    border: 1px solid #c3c3c3;
    border-radius: 3px;
    font-size: 18px;
    font-weight: bold;
    color: #676767;
    text-shadow: 1px 1px 1px #fff;
    position: relative;
}
#accordion .panel-title a:before{
    content: "\f068";
    font-family: "Font Awesome 5 Free";
    width: 25px;
    height: 25px;
    line-height: 25px;
    border-radius: 50%;
    background: #929191;
    font-size: 12px;
    font-weight: 900;
    color: #fdfbfb;
    text-align: center;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
    text-shadow: none;
    position: absolute;
    top: 8px;
    left: 15px;
}
#accordion .panel-title a.collapsed:before{ content: "\f067"; }
#accordion .panel-body{
    padding: 10px 15px;
    font-size: 15px;
    color: #222;
    line-height: 27px;
    border: none;
}
#accordion .panel-body p{ margin-bottom: 0; }
            