.sec {
  margin-bottom: 50px;
}
.sec .left {
  width: 320px;
}
.dev-pc .sec .left,
.dev-tb .sec .left {
  float: left;
  margin-right: 40px;
}
.dev-sp .sec .left {
  margin: 0 auto 30px;
}
.sec .left img {

}
.sec .right {
  
}
.sec p {
  margin-top: 0;
}
.clearfix::after {
  clear: both;
  content: " ";
  display: block;
}