.h1{
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}
.h2{
    display: block;
    font-size: 1.5em;
    margin-block-start: 0.83em;
    margin-block-end: 0.83em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}
.h4{
    display: block;
    margin-block-start: 1.33em;
    margin-block-end: 1.33em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}
.h5{
    display: block;
    font-size: 0.83em;
    margin-block-start: 1.67em;
    margin-block-end: 1.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}