section.usecase {
  background-color: #D2F2ED;
  min-height: 480px;
  padding:1rem;
  padding-bottom: 0;
  margin-bottom: 100px;
}
section.usecase .content {
  padding-bottom: 80px;
}
.usecase .bg {
  background: url("./../../image/common/town.png") bottom / cover repeat-x;
  background-size: auto 200px;
}
.linkitems {
  gap: 1rem;
  width: 700px;
  flex-wrap: wrap;
  flex-direction: row;
  margin: 30px auto;
}
.linkitem {
  background-color: #fff;
  border: 1px solid #dfdfdf;
  border-radius: 150px;
  padding: 2px 8px;
  width: 220px;
  flex: 0 0 220px;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
}
.linkitem.long{
  width: 460px;
  flex: 0 0 460px;
}
.linkitem:hover{
  opacity: 1;
  background-color: #f0f0f0;
}

h3{
  border-top: #34D8BF 3px solid;
  font-weight: 300px;
  width: 300px;
  margin: 20px auto;
  text-align: center;
  padding: 20px 0;
}
h3.sdk{
  border-color: #ff7700;
}
.midashiimg{
  max-width: 120px;
  max-height: 64px;
  width: auto;
  height: auto;
  margin: 20px auto;
  display: block;
}
.text{
  margin: 1rem auto 20px;
  gap: 1rem;
  flex-direction: column;
    width: 850px;
}
.imagearea{
  width: 100%;
  margin: 0 auto;
}
.imagearea img{width: 750px;}
.imagearea.midium img{
  width: 500px;
}
.caseitem{
  padding-top: 80px;
}
@media screen and (max-width: 740px) {
  section.usecase {
    min-height: auto;
    padding: 0;
    margin-bottom: 0;
  }
  .linkitems{
    flex-wrap:  nowrap;
    height: 40px;
    margin: 1rem auto;
  }
  .linkitem{}
  section.usecase .content{
    padding: 0 ;
  }
  p{
    padding: 0 1rem;
  }
  .text{
    width: 100%;
  }

}