css 背景图片撑开容器高度

background-image是属性，不是块元素的内容，是无法撑开高度的。要想实现这种效果，一般通过:after,:before来填充。

   .teamDiv{
      background: url(/image/home_team.jpg);
      background-repeat:no-repeat; 
      background-size:100% 100%;
      background-position-x: center;
      margin: 0 auto;

    }
    .teamDiv::after{
      content: "";
      display: block;
      padding-bottom: 36%;

    }

   <div class=" teamDiv" >
     
      <div class="teamContent">
        <p class="text-center team-title">友昆团队</p>
        <p class="text-center team-title_en">YOUKING TEAM</p>
        <p class="text-center team_p">二十年经验的团队</p>
        <p class="text-center team_p_en">Team of twenty years of experience</p>
        <p class="text-center team_p">提供高性价比方案的团队</p>
        <p class="text-center team_p_en">
          A team that offers a cost-effective solution
        </p>
        <p class="text-center team_p">作品国内外屡获殊荣的团队</p>
        <p class="text-center team_p_en">
          Award-winning team at home and abroad
        </p>
        <p class="text-center team_p">思维奔放、严谨做事的团队</p>
        <p class="text-center team_p_en">
          A team that is open-minded and rigorous
        </p>
        <p class="text-center team_p">研究创新的团队</p>
        <p class="text-center team_p_en">Research innovative team</p>
        <p class="text-center team_p">注重节能的团队</p>
        <p class="text-center team_p_en">Energy-saving team</p>
        <p class="text-center team_p">多系统、多元化组合的团队</p>
        <p class="text-center team_p_en">Multi-system, diverse team</p>
      </div>
    </div>