h1 {
    display: flex;
    justify-content: right;
    margin-right: 4.8em;
    margin-bottom: 0.2em;
    margin-top: 2.6em;
    font-weight: 400;
    font-size: 2.8em;
}

.about {
    display: flex;
    justify-content: right;
    text-align: right;
    margin: 0em 9em;
    font-size: 1.5em;
    font-weight: 400;
    line-height: 2;
}

.texthr {
  border-top: 0.0125em solid #636363;
  margin: 1.5em 13.7em;
  opacity: 25%;
}

@media (max-width:810px) {
    h1 {
        font-size: 3em;
        margin-right: 3em;
    }

    .about {
        font-size: 1.3em;
        margin-right: 7em;
    }

    .texthr {
        margin: 1.5em 9em;
    }
}

@media (max-width:660px) {
    h1 {
        font-size: 3em;
        margin-right: 2.2em;
    }

    .about {
        font-size: 1.2em;
        margin-right: 5.6em;
    }

    .texthr {
        margin: 1.5em 6.5em;
    }
}

@media (max-width:600px) {
    h1 {
        font-size: 1.8em;
        margin-right: 3em;
    }

    .about {
        font-size: 1em;
    }

    .texthr {
        margin: 1.5em 5.7em;
    }
}

@media (max-width:490px) {
    h1 {
        font-size: 1.8em;
    }

    .about {
        font-size: 0.9em;
        margin-right: 6em;
    }

    .texthr {
        margin: 1.5em 5.3em;
    }
}

@media (max-width:446px) {
    h1 {
        font-size: 1.8em;
    }

    .about {
        font-size: 0.8em;
        margin-right: 6em;
    }

    .texthr {
        margin: 1.5em 5.3em;
    }
}