Stacking Divs after screen resize?

I'm trying to have two divs next to each other, picture on left, information on right, and I need them to stack (in the center) when screen size gets smaller.

Every time I try to fix it, the images stay floated to either side of the screen so they're not centered.

How can I accomplish this in either CSS or possibly JQuery?

/* ------------------ team ------------------------------------*/

#team {
  background-color: #0370AD;
  background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)), #0370AD;
  min-height: 115vh;
  width: 100%;
  text-align: center;
  font-family: "Open Sans";
  letter-spacing: 3px;
  display: inline-block;
}
#team #teamheader {
  text-align: center;
  color: white;
  font-size: 60px;
  padding-top: 30px;
}
#team h2 {
  width: 100%;
  margin-top: 20px;
  margin-bottom: 20px;
}
#team p {
  color: white;
  height: 20px;
  font-size: 30px;
}
/* ------------------ profile divs ---------------------------*/

.profpics {
  height: 400px;
  width: 100%;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  padding-top: 100px;
  border: 2px solid black;
}
.team_image {
  height: 300px;
  width: 550px;
  float: left;
  border: 2px solid black;
}
.team_image img {
  height: 300px;
  width: 300px;
  border: 2px solid black;
}
.team_info {
  text-align: center;
  width: 600px;
  height: 60%;
  margin-left: 3%;
  float: right;
  border: 2px solid black;
}
.profpics h1 {
  font-family: Oswald;
  text-align: center;
  width: 100%;
  font-size: 50px;
  letter-spacing: 3px;
  color: white;
  padding-top: 10px;
  padding-bottom: 10px;
  border-top: 4px solid black;
  border-bottom: 4px solid black;
}
.profpics h2 {
  font-size: 35px;
  color: white;
}

<div id="team">
  <h1 id="teamheader">Our Team</h1>
  <!-- profile divs -->
  <div class="profpics">
    <div class="team_image">
      <img src="http://ift.tt/2iaD8vb">
    </div>
    <div class="team_info">
      <h1>Name</h1>
      <h2>Chief Executive Officer</h2>
      <p>email</p>
    </div>
  </div>
  <div class="profpics">
    <div class="team_image">
      <img src="http://ift.tt/2iaD8vb">
    </div>
    <div class="team_info">
      <h1>Name</h1>
      <h2>Chief Technology Officer</h2>
      <p>email</p>
    </div>
  </div>