.main {
  /* margin-top: 100px; */
  margin: 20px auto;
  margin-top: 40px;
  max-width: 960px;
  width:100%
}

.content_box {
  margin: 10px 20px;
  background: #fff;
  border-radius: 25px;
  min-height: 300px;
  box-shadow: 0px 3px 10px #bbb;
}

.content_box h1 {
  font-weight: bold;
  font-size: 1.2em;
  padding-bottom: 15px;
  text-align: center;
}

.content {
  margin: 0 auto;
  padding: 20px;
  height: 100%;
}

.content .text_box {
  margin-top: 10px;
}

header {
  position: static;
}