.h1, h1 {
    font-size: 2rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

.h2, h2 {
    font-size: 1.5rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

.h3, h3 {
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

p {
    margin: 10px atuo;
}

@media (min-width: 576px) {
    .content-container {
        max-width: 540px;
    }
}

@media (min-width: 768px) {
    .content-container {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .content-container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .content-container {
        max-width: 1140px;
    }
}

.content-container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
    padding-top: 15px;
    padding-bottom: 15px;
}

.post-summary:not(:last-child) {
    margin-bottom: 50px;
}