body{
    background-color: rgb(38,38,38);
    background-image: url("../img/pattern.png");
    background-repeat: repeat;
}

.page_width{
    width: 1200px;
}

.page_base{
    
}

.page_header{
    background-color: white;
    height: 130px;
    padding: 10px;
    color: #404040;
}

.page_header_logo{
    height:110px;
    width:160px;
    background-image: url("../img/logo.png");
    background-repeat: no-repeat;
    background-size: 100%;
}

.page_header_label{
    font-size: 2.4rem;
    line-height: 1.2em;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding-left: 20px;
}

.page_header_subject{
    font-size: 1.6rem;
    line-height: 1.2em;
    letter-spacing: 0.1em;
    padding-left: 20px;
}

.page_header_filler{
    flex: 1 1 auto;
}

.page_main{
    background-color: white;
}

.page_menu{
    background-color: white;
    width: 180px;
    flex: 0 0 180px;
    gap: 5px;
    padding: 10px 10px 50px 10px;
}

.page_content{
    background-color: white;
    padding: 30px 20px 100px 20px;
    flex: 1 1 auto;
}

.page_footer{
    background-color: white;
    border-radius: 0 0 10px 10px;
    padding: 20px;
    color: #404040;
}

.page_transparent {
    background: none;
    height:5px;
}

.width_filler{flex: 1 1 0;}