*{
    padding: 0;
    margin: 0;      
}
a{
    color: black;
    text-decoration:none;
    text-align: center;   
}
header{
    background-color:beige;
    padding: 30px;
    text-align: center; 
    height: 150px; 
}
nav ul{
    text-decoration: none;
    margin-top: 30px;
    justify-content: space-around;
    background-color: beige;
    display: flex;
    text-align: center;
    list-style-type: none; 
}
div{
    display: flex;
    justify-content: space-around;
    flex-direction: row;
    flex-wrap: wrap;
    background-color: beige;
    list-style: none;
    text-align: center;
}
img{
    width: 300px;
    height: 300px; 
}

article{
    margin: 30px;
    justify-content: space-around;
    align-items: center;
    flex-direction:row ;
    flex-wrap: wrap;
    gap: 30px;
    text-align: center;
}
a:hover {
    color: red; /* マウスホバー時のリンクの色 */
  } 
.iframe{
    text-align: center;
}
aside{
    padding: 100px;
    bottom: 0;
}
footer{
   text-align: center;
   background-color:beige; 
   bottom: 0;
   width: 100%;
}