* {
	float: none;
	position: static;
}
 
body {
	max-width: 100%;
	height: auto;
}

#wrap {
	animation: fadein 1.5s forwards;
}



@keyframes fadein {
	0% {opacity: 0}
	100% {opacity: 1}
}

@keyframes fadeout {
	0% {opacity: 1}
	100% {opacity: 0}
}

@media screen and (max-width: 720px) {
header {
background-color: #008080;
color: white;
width: 328px;
}

.box {
  width: 780px;
  height: 75px;
  overflow-y: scroll;
}

header a{
  color: white;
}
a{
  color: black;
}
a{ text-decoration:none;}
a:active{
opacity: 50%;
}
.area {
  width: 350px;
  margin: auto;
  flex-wrap: wrap;
  display: flex;
}

#wrap {
font-family: 'Poppins','Noto Sans JP',sans-serif;
width: 385px;
margin:0 auto;
}
#contents {
height:850px;
width: 328px;

}
a:hover {
   opacity: 0.75;
}
a {text-decoration: none}

a {color: black;}

footer {
background-color: #3cb371;
width: 328px;

}
font-family: 'Poppins', sans-serif;
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
display: block;
}

}
.area {
  width: 500px;
  margin: auto;
  flex-wrap: wrap;
  display: flex;
}
 
.tab_class {
  width: calc(100%/5);
  height: 50px;
  background-color: black;
  color: white;
  line-height: 50px;
  font-size: 15px;
  text-align: center;
  display: block;
  float: left;
  order: -1;
}
 
input[name="tab_name"] {
  display: none;
}
 
input:checked + .tab_class {
  background-color: forestgreen;
  color: white;
}
 
.content_class {
  display: none;
  width: 100%;
}
 
input:checked + .tab_class + .content_class {
  display: block;
}
 
@media screen and (min-width:720px) {
header {
background-color: #008080;
color: white;
}
a:hover {
   opacity: 0.75;
}

#feed{
  display: flex;
}
#mfeed{
  flex: 0;
}
#mfeed2{
  flex: 1;
}
a {text-decoration: none}

a {color: black;}

#wrap {
font-family: 'Poppins','Noto Sans JP',sans-serif;
width:960px;
margin:0 auto;
}

header a{
  color: white;
}
a{
  color: black;
}
a{ text-decoration:none;}
a:active{
opacity: 50%;
}

#contents {
width:958px;
height:520px;
}
.box {
  width: 780px;
  height: 70px;
  overflow-y: scroll;
}

footer {
background-color: #3cb371;
}
font-family: 'Poppins', sans-serif;
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
display: block;
}

}