* { margin : 0 ; padding : 0 ; }

@import url(http://fonts.googleapis.com/earlyaccess/notosansjapanese.css);

#my_main { 
background-color: #ffffff;
}

#my_body { position : relative ; 
margin: 0 auto; 
color: #000000;
}

#my_header 
{ height : 1105px ;
background-image: url(img/mainbaner.gif);
background-position: 50% 0%;
background-repeat: no-repeat;}


#my_navigation
{
font size=30%;
height : 20px ;
font-size: 10px;
letter-spacing: 1px;
padding-top: 12px;
padding-left: 5px;
padding-bottom: 3px;
margin-bottom: 20px;

}

#my_sns
{
height : 20px ;
padding-top: 3px;
padding-left: 5px;
padding-bottom: 10px;

}

#my_footer { 
height : 20px ;
font-size: 10px;
letter-spacing: 1px;
padding-top: 12px;
padding-left: 5px;
padding-bottom: 3px;
margin-bottom: 20px;

}

#my_contents {

}
/* 横幅640px以下の場合のみ適用 */
@media (max-width: 640px) {
  img{
    max-width: 98%;
    height: auto;
  }
}



h1 {
font-family: 'Noto Sans Japanese', sans-serif;
font-weight: 500;
font-size:25px;
margin-top: 5%;
margin-bottom: 15%;
margin-left: 5%;
margin-right: 5%;
letter-spacing: 3px;

}

h2 {
font-family: "Noto Sans Japanese", sans-serif;
font-size: 18px;
font-weight: 400;
color: #ffffff;
background-image: url("img/tex2.jpg");
line-height: 25px;
letter-spacing: 5px;
margin-top: 5%;
padding-left: 20px;
padding-right: 10px;
padding-top: 5%;
padding-bottom: 5%;
margin-bottom: 5%;
}

h3 {
font-family: 'Noto Sans Japanese', sans-serif;
font-weight: 400;
font size:100%;
	margin-top: 50px;
	margin-bottom: 20px;
	line-height: 30px;
}

img {
    border-style:none;
}

br {
letter-spacing: 0;
}




.b{
font-family: 'Noto Sans Japanese', sans-serif;
font-weight: 300;
line-height: 15px;
letter-spacing:6px;
font-size:10px;
margin-left: 10%;
margin-right: 10%;
margin-bottom: 50px;
margin-top: 5px;

}



.c{
font-family: "Noto Sans Japanese", sans-serif;
font-size: 15px;
font-weight: 300;
color: #585858;
line-height: 23px;
letter-spacing: 2px;
margin-top: 50px;
margin-left: 5%;
margin-right: 5%;
margin-bottom: 50px;
}


.setsumei{
font-family: "Noto Sans Japanese", sans-serif;
font-size: 15px;
font-weight: 300;
background-color: #efefef;
line-height: 20px;
letter-spacing: 5px;
margin: 5px;
margin-bottom: 30px;
padding: 20px;
}


.syosai{

font-family: 'Noto Sans Japanese', sans-serif;
font-size: 10px;
font-weight: 300;
line-height: 18px;
letter-spacing:6px;
margin-left: 15%;
margin-right: 10%;
margin-bottom: 50px;
margin-top: 20px;

}

.tokka{
font-family: "Noto Sans Japanese", sans-serif;
font-size: 40px;
font-weight: 800;
color: #ff0000;
line-height: 18px;
letter-spacing: 6px;
margin-top: 20px;


margin-bottom: 0px;
}




<!-- ボタン -->
.btn{
	width: 20%;
	padding: 10px;
	background: #405dca;
	color: #fff;
	text-align: center;
	display: block;
	text-decoration: none;
}
.btn:hover{
	text-decoration: none;
	background: #364ea5;
}

.square_btn {
    display: inline-block;
    padding: 0.3em 1em;
    text-decoration: none;
    color: #67c5ff;
    border: solid 2px #67c5ff;
    border-radius: 3px;
    transition: .4s;
}

.square_btn:hover {
    background: #67c5ff;
    color: white;
}





.embed-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
}

.embed-container iframe,
.embed-container object,
.embed-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}



BODY{
width : 100% ;
background-color: #f5f5f5;
<!-- background-image: url("img/tex.jpg"); /* 全体の背景画像 */ -->
background-position: 50% 50%;            /* 背景画像の位置は画面中央 */
background-attachment:fixed;             /* 背景画像を固定する */
}


.ggmap {
position: relative;
padding-bottom: 56.25%;
padding-top: 30px;
height: 0;
overflow: hidden;
}
 
.ggmap iframe,
.ggmap object,
.ggmap embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}


.fb_iframe_widget > span {
  vertical-align: baseline !important;
}


/*佐川追記*/
.table {
    background-color: #fff;
    border: 1px solid #ddd;
    width: 100%;
    max-width: 100%;
    margin-bottom: 24px;
    border-spacing: 0;
    border-collapse: collapse;
    padding: 0 15px 0 15px;
}