header{
    width: 100%; 
    min-width: 752px;
    margin: 0 auto;
    border-bottom: 1px solid var(--color-light-gray);
}
#header_top{
    width: 100%; 
    max-width: 1440px;
    min-width: 752px;
    margin: 0 auto;
    padding-left: 20px;
    padding-top: 25px;
    height: 84px;
}
#header_top p.logo{    
    width: 170px;
    height: 28px;
}

article{
    margin: 40px auto 80px auto;
    max-width: 660px;
    min-height: 100px;   
    padding: 10px; 
}
article a {
    text-decoration: underline;
    color: blue;
}
article::after{
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
#editor{
    font-size: 18px;
    line-height: 27px;
    font-weight: 400;
}
#editor h1{
    font-size: 46px;
    line-height: 48px;
    font-weight: 800;
    letter-spacing: -0.5px;
    padding: 15px 0;
}
#editor h2{
    font-size: 32px;
    line-height: 35px;
    font-weight: 700;   
    color: #6158C7; 
    letter-spacing: -0.5px;
    padding: 12px 0;
    margin-bottom: 12px;
    position: relative;
}
#editor h2::after{
    content: '';
    position: absolute;
    width: 36px;
    height: 4px;
    background-color: #6158C7;
    left: 0;
    bottom: 0;
}
#editor h3{    
    font-size: 26px;
    line-height: 28px;
    font-weight: 700; 
    letter-spacing: -0.5px;
    padding: 10px 0;
}
#editor h4{    
    font-size: 20px;
    line-height: 20px;
    font-weight: 700; 
    padding: 6px 0;
}
#editor h5{
    font-size: 18px;
    line-height: 18px;
    font-weight: 700;  
    padding: 6px 0;   
}
#editor h6{
    font-size: 17px;
    line-height: 17px;
    font-weight: 700;     
}
#editor ul{
    list-style: disc;
    padding: 0 30px;
}

/*@media (max-width: 430px) {*/

@media (max-width: 480px) {
    header{        
        min-width: 360px;
        max-width: 448px;
        width: 100%;
    }
    #header_top{  
        min-width: 360px;
        max-width: 448px;
        width: 100%;
        height: 56px;     
        padding-left: 0px;
        padding-top: 16px;
    }
    #header_top p.logo{
        width: 133px;
        height: 22px;
        margin: auto;
    }  
    article{
        margin: 10px auto 30px auto;
        min-width: 360px;
        max-width: 412px;
        min-height: 100px;
    }    
}

@media (max-width: 430px) {
    header{        
        max-width: 430px;
    }
    #header_top{  
        max-width: 430px;
    }
}