#ast-desktop-header > div.ast-main-header-wrap.main-header-bar-wrap > div
{

background-image: url(https://aluminum.programming.jp.net/wp-content/uploads/2022/04/headder_back-scaled.jpg);
background-repeat: no-repeat;
background-position: left top;
background-size: auto;
background-attachment: scroll;

}

#ast-mobile-header > div.ast-main-header-wrap.main-header-bar-wrap > div
{

background-image: url(https://aluminum.programming.jp.net/wp-content/uploads/2022/04/headder_back-scaled.jpg);
background-repeat: no-repeat;
background-position: left top;
background-size: auto;
background-attachment: scroll;

}