article *  {
     font-size: 16px;
     text-align: justify;
}

details[open] > summary:after {
    display: inline;
}
details[close] > summary {
    display: inline;
}

/* for about page */
.about-img {
    margin-left: 0;
    margin-top: 1rem;
}

/* fix the scroll showing on the title next to logo */
#headertitle {
    overflow: hidden;
}