body, h1, h2, h3 {
    font-family: "Yu Gothic", "游ゴシック", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3",Verdana, Helvetica, Arial,"メイリオ",sans-serif;
    font-weight: 500;
    font-size: 24px;
}

body {
    background-color: dimgray;
    color: aliceblue;
    font-feature-settings: "palt";
    margin: 0px;
    padding: 4%;
}

a {
    color: inherit;
    text-decoration: none;
}

.a_link{
    color:lawngreen;
}

#Main {
    margin:0% 10%;
}

.Main_Contents {
    margin: 50px 50px;
}

header {
    margin: 20px 0px;
    border-bottom:solid 1px aliceblue;
}

h1{
    margin-left:50px;
}

footer {
    margin: 0px;
    border-top: solid 1px aliceblue;
    font-size: 20px;
    text-align: center;
}

/*スマホ対応*/
@media screen and (max-width:860px) {
    body, h1, h2, h3 {
        font-size: 18px;
    }
    body{
        padding:0%;
    }
    #Main {
        margin:0%;
    }

    .Main_Contents {
        margin: 4% 4%;
    }
    footer{
        font-size:14px;
    }
}