*{
    margin:0;
    padding: 0;
}

img{
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    vertical-align: middle;
}

.cta{
    width: 90%;
    margin-right: auto;
    margin-left: auto;
    display: block;
    margin-top: 15px;
    margin-bottom: 15px;
}

.cta:hover{
    opacity: 0.5;
    width: 85%;
    margin-bottom: 17.2px;
    margin-top: 17.2px;
    transition: all .2s;
}

.name{
    width: 40%;
}

@media screen and (min-width:720px) { 
    /*　画面サイズが480pxからはここを読み込む　*/
    body{
        width: 480px;
        margin-right: auto;
        margin-left: auto;
    }
}