a {
  text-decoration: none;
}
.all{
  width:550px;
  text-align:left;
  padding:5% 5%;
  margin:0 auto;
  background-color:#ffffff;
  border:solid #8a6aa8 1px;
  line-height:2.0;
  letter-spacing:2px;
  font-family:'���C���I',Verdana, Arial, Osaka, Helvetica, sans-serif;}
.main_title{
  font-size: 16px; 
}.rainbow {
  background: linear-gradient(
    45deg,
    #a05a5a 0%,
    #c27a8f 7%,
    #9fbf9a 15%,
    #b3b85a 25%,
    #6fb8a8 35%,
    #6a5fa3 50%,
    #a06aa8 65%,
    #5fa88a 78%,
    #8a6aa8 90%,
    #a05a5a 100%
  );
}
.rainbow-text {
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}
.rainbow-line {
  border: none;
  height: 2px;
  border-radius: 2px;
}
.con{
margin:0 auto;
width:500px;
}body {
  font-size: 12px; 
}