body{
  margin-top:  0;
  margin-left: 0;
  margin-right: 0;
  margin-bottom: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: cursive;
  font-size: 25px;
  background-color: white;
}

footer{
  text-align: center;
  background-color: aqua;
}

.title ul{
   margin-top: 0;
   margin-bottom: 0;
   padding-left: 0;
}

.title a{
  text-decoration: none;
}

.contents{
  width: 100%;
  height: 80%;
  background-color: red;
}

.contents .submenu{
  display: inline-block;
  width: 30%;
  background-color: gray;
  padding: 5px;
  margin: 5px;
  border-style: double;
  border-radius: 10px;
}

.contents .main{
  display: inline-block;
  width: 40%;
  height: 100%;
  background-color: green;
}
/*
.sub_menu_top{
  font-size: 20px;
  margin-left: 20px;
}

.sub_menu_sub{
  font-size: 18px;
  margin-left: 40px;
}

.sub_menu_sub_menu{
  font-size: 15px;
  margin-left: 60px;
}
*/
.tec_menu{
  display: block;
  margin-left: 40px;
}

.main_contents{
  display: block;
  width: 100%;
  height: 100%;
}

.menu_css{
  font-size: 20px;
}

.me{
  display: inline-block;
}
.me img{
  width: 100px;
}
.me_talk{
  display: inline-block;
}

/*----------------------------------------------menu*/
.menu__item {
  background: #5200b7;
  color: #fff;
  /*マウスが上にある時の状態*/
  cursor: pointer;
  display: block;
  margin-bottom: 1px;
}
.menu__item__link {
  color: #fff;
  display: block;
  line-height: 200px;
  padding: 0 1rem;
  position: relative;
  font-size: 60px;
}
/*afterとはコンテンツに後付けで設定できる*/
.menu__item__link:after {
  background: #33105f;
  content: '＋';
  display: block;
  line-height: 200px;
  position: absolute;
  right: 0;
  text-align: center;
  top: 0;
  width: 60px;
}
.menu__item__link.on:after {
  content: '－';
}

.submenu {
  background: gray;
  display: none;
}
.submenu__item {
  border-bottom: 1px solid #5200b7;
  color: #fff;
  padding: 1rem;
  text-align: right;
}

.submenu__item a{
  color: #fff;
}