body {
  margin: 0 auto;
}

h1,h2,h3,h4,h5,h6,p {
  padding: 10px 0;
  margin: 0;
}

.title {
  width: 998px;
  font-size: 34px;
  padding-top: 50px;
  margin: 0 auto;
  font-weight: bold;
}

.content {
  width: 960px;
  height: 175px;
  padding-top: 50px;
  margin: 0 auto;
}
.sentence {
  min-width :200px;
  font-size: 20px;
  margin: 0 auto;
}

.company_name {
  height: 50px;
  font-size: 20px;
  padding-right: 150px;
  text-align: right;
}

.answer {
  width: 960px;
  height: 100px;
  padding-top: 50px;
  text-align:center;
  margin: 0 auto;
}

.btn {
  width: 300px;
  height: 60px;
  font-size: 20px;
  color: #fff;
  border-radius: 50px;
  -webkit-appearance: none;
  background-color: #ff4500;
  cursor: pointer; 
  }

.br-sp {
  display: none;
}

@media screen and ( max-width:479px ){
.title, .content, .sentence, .answer, .btn {
  width: 100%;
  font-size: 100%;
}

.sentence {
  width: 90%;
  font-size: 90%;
}

.btn {
  width: 60%;
  font-size: 80%;
}

.br-sp {
  display: inline-block;
}
}