@import url(/css/column.css);

#header { margin-bottom: 2.5em;
    background-image: url(http://www.webdoku.jp/column/ikezawa/images/title_ikezawa.jpg);
    background-repeat: no-repeat;
    background-position: left top;
    background-size: 100% auto;
}
#header-name {
    height: 145px;
    overflow: hidden;
}
#header-name a { 
    display: block; padding-top: 145px;
}
@media screen and (max-width:1000px) {
    #header-name { height: calc((70vw - 30px) * 0.22);}
    #header-name a { padding-top: calc((70vw - 30px) * 0.22);}
}
@media screen and (max-width:750px) {
    #header-name { height: 22vw;}
    #header-name a { padding-top: 22vw;}
}