悬停功能保持打开状态

Question

我在下面的代码中提供了一些使用HTML和CSS创建的信息框。是否可以让悬停div保持打开，直到您单击底部的关闭，然后它会向上滑动并再次隐藏自己？这可以用纯CSS完成吗？如果没有，是否可以使用vanilla JavaScript？什么都有帮助，欢呼！

.everything {
  text-align:center;
height:1000px;
background-color:#fcfcfc;
}

.everything:hover {
cursor: default;
}

.infobox-list {
    display: inline-block;
    text-align: center;
}

ul, ol, li {
    margin: 0;
    padding: 0;
    list-style-position: outside;
    list-style-type: none;
}

h1, h2, h3, h4, h5, h6, ul, li, ol, form, fieldset {
    margin: 0;
    padding: 0;
}

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

ul, menu, dir {
    display: block;
    list-style-type: disc;
    -webkit-margin-before: 1em;
    -webkit-margin-after: 1em;
    -webkit-margin-start: 0px;
    -webkit-margin-end: 0px;
    -webkit-padding-start: 0px;
}

.hr {
  border-color:rgba(255,255,255,0.3);
  margin-left:9px;
  width: 210px;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    padding: 0;
    margin: 0;
    background-color: #fcfcfc;
    color: #555;
    min-width: 20em;
}

.info-boxes li {
  width: 310px;
    height: 535px;
    background: #e2ecf6;
    border: 0px solid #efefef;
    border-radius: 4px;
    margin: 0 0px 0px;
    cursor:pointer;
    position: relative;
    overflow: hidden;
    transform: scale(0.75); 
}

.ptext
{
  text-align:center;
  font-size:20px;

}

.profile
{
  margin-top:10%;
  margin-left:1px;
  width:75px;
  height:75px;
}

.performance
{
  margin-left:1px;
  margin-top:10%;
  width:75px;
  height:75px;
}

.learning
{
  margin-top:10%;
  width:75px;
  height:75px;
}

.team
{
  margin-top:10%;
  width:75px;
  height:75px;
}

.smallicons
{
  width:50px;
  height:50px;
}

.profileclose {
margin-top:215px;
}

.infobox-list li {
  display: inline-block;
}

a {
  color: white;
  text-decoration: none;
  font-weight:lighter;
}

.info-boxes li .infobox {
  display: table-cell;
  text-align:center;
  vertical-align: middle;
  height: 535px;
  width: 310px;
}

.info-boxes li .infobox:before { 
  content: '';
  position: absolute;
  left: 20%;
  width: 160%; 
  height: 188%; 
  background-color: rgb(255, 255, 255); /* fallback */
  background-color: rgba(255, 255, 255, 0.2);
  top: 0;
  -webkit-transform: rotate(46deg);
  -moz-transform: rotate(46deg);
  transform: rotate(30deg);
} 

.info-boxes li:hover .shade {
  animation-name: windowshade;
  cursor:pointer;
}

.info-boxes li .shade,
.info-boxes li:hover .shade {
  animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  animation-duration: 1s;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

section p {
  line-height: 1.3em;
  color: #6d6e71;
  width: 100%;
  padding: 0 10px;
  margin-top: 5px;
  margin-left: 0px;
  text-align:left;
}

p {
  display: block;
}

.info-boxes li .shade {
  position: absolute;
  width: 310px;
  height: 555px;
  left: 0;
  top: 0;
  background-color: #00688B;
  color: #fff;
  display: table;
  vertical-align: middle;
  padding: 20px 10px 0;
  transform: translateY(-340px);
  animation-name: windowshade-out;
}

.info-boxes li .shade h3 {
  color: #fff;
  padding: 10px;
  font-weight: bold
}

.info-boxes li .shade p {
  color: #fff;
  line-height: 3em;
  font-weight: lighter;
}

.ie9 .info-boxes li:hover .shade {
  top: 245px
}

.info-boxes li:hover a {
  text-decoration: none
}

@keyframes windowshade {
  0% {
    transform: translateY(-535px)
  }
  100% {
    transform: translateY(0)
  }
}

@keyframes windowshade-out {
  0% {
    transform: translateY(0)
  }
  100% {
    transform: translateY(-535px)
  }
}

<div class="everything">
  <br style="line-height:55px;">
  <section class="info-boxes">
    <ul class="infobox-list">
      <li>
        <a href="#">
          <div class="infobox">
            <table>
              <tr>
                <img class="profile" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497365894/Profile-Icon_twnm83.png"></tr>
              <tr>
                <p class="ptext">Profile</p>
              </tr>
            </table>
          </div>
          <div class="shade">
            <table>
              <tr>
                <td>
                  <img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497301295/About-Me_dudglr.png">
                </td>
                <td>
                  <p>About Me</p>
                  <hr class="hr">
                </td>
              </tr>
              <tr>
                <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284615/Resume_tb7t02.png"> </td>
                  <td>
                    <p>Resume</p>
                    <hr class="hr">
                  </td>
              </tr>
              <tr>
                <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497280574/Accountabilities_qfdcns.png"> </td>
                  <td>
                    <p>Accountabilities
                      <p/>
                      <hr class="hr">
                  </td>
              </tr>
            </table>
            <div class="profileclose">Close</div>
          </div>
        </a>
      </li>

      <li>
        <a href="#">
          <div class="infobox">
            <table>
              <tr>
                <img class="performance" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497365894/Performance-Icon_bwevmx.png"></tr>
              <tr>
                <p class="ptext">Performance</p>
              </tr>
            </table>
          </div>
          <div class="shade">
            <table>
              <tr>
                <td>
                  <img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284615/Goals_aw4nso.png">
                </td>
                <td>
                  <p>Goals</p>
                  <hr class="hr">
                </td>
              </tr>
              <tr>
                <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284934/EA_n8lvj1.png" </td>
                  <td>
                    <p>Effectiveness Assessment</p>
                    <hr class="hr">
                  </td>
              </tr>
              <tr>
                <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284615/development_yfv6o1.png" </td>
                  <td>
                    <p>Development Plan</p>
                    <hr class="hr">
                  </td>
              </tr>
              <tr>
                <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497285433/resources_b3r88g.png"> </td>
                  <td>
                    <p>Resources
                      <p/>
                      <hr class="hr">
                  </td>
              </tr>
            </table>
          </div>
        </a>
      </li>
      <li>
        <div class="infobox">
          <table>
            <tr>
              <img class="learning" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497365894/Learning-Icon_p8gqbk.png"></tr>
            <tr>
              <p class="ptext">Learning</p>
            </tr>
          </table>
        </div>
        <div class="shade">
          <table>
            <tr>
              <td>
                <img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497297687/Training-Plan_v43ne7.png">
              </td>
              <td>
                <p>Training Plan</p>
                <hr class="hr">
              </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497297687/Training-History_czttv1.png"> </td>
                <td>
                  <p>Training History</p>
                  <hr class="hr">
                </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497298863/coursefeedback_qdh1wm.png"> </td>
                <td>
                  <p>Course Feedback</p>
                  <hr class="hr">
                </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497299106/Favourites_y9gkce.png"> </td>
                <td>
                  <p>Training Favourites
                    <p/>
                    <hr class="hr">
                </td>
            </tr>
          </table>
        </div>
   
      </li>
      <li>
        <div class="infobox">
          <table>
            <tr>
              <img class="team" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497365894/TeamIcon_as9ynw.png"></tr>
            <tr>
              <p class="ptext">Team</p>
            </tr>
          </table>
        </div>
        <div class="shade">
          <table>
            <tr>
              <td>
                <img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497300652/Team_iovnl5.png">
              </td>
              <td>
                <p>Team</p>
                <hr class="hr">
              </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284615/Goals_aw4nso.png"> </td>
                <td>
                  <p>Team Goals</p>
                  <hr class="hr">
                </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497284615/development_yfv6o1.png"> </td>
                <td>
                  <p>Team Development</p>
                  <hr class="hr">
                </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497297687/Training-Plan_v43ne7.png"> </td>
                <td>
                  <p>Team Training</p>
                  <hr class="hr">
                </td>
            </tr>
            <tr>
              <td><img class="smallicons" src="http://res.cloudinary.com/djxai1v1e/image/upload/v1497301295/Approval_f9y1da.png"> </td>
                <td>
                  <p>Approvals
                    <p/>
                    <hr class="hr">
                </td>
            </tr>
          </table>
        </div>

      </li>
    </ul>
  </section>
</div>