*{
    box-sizing: border-box;
}

body {
    background-color: lightgray;
        align-items: center;
            justify-content: center;
            min-height: 100vh;
            font-size: 16px;
            font-family: 'Franklin Gothic Medium';
            
           
}
.main {
   text-align: center;
margin-top: 39px;
}

.header {
text-align: center;
}
 
.AD {
    background-color: black;
    background-image: url(cloud.jpg);
    height: 350px;
    justify-content: space-evenly;
    display: flex;
}
.AD img {
width:500px;
    height: 350px;
}
.miku {
    
    height: 200px;
    
}