.header {
    background-color: #4051b5;
    color: white;
    padding: 20px;
    font-size: 2em;
}
h1, h2 {
    font-size: 1.5em;
    font-weight: 300;
    letter-spacing: -.01em;
    margin: 0px;
}
@media screen and (min-width: 800px) and (max-width: 1240px) {
    h1, h2 {
        font-size: 1.5em;
    }
}
h2 {
    font-weight: bold;
}
nav {
    display: flex;
    flex-wrap: wrap;
}
.nav-tab {
    background-color: #4051b5;
    color: white;
    margin-top: 10px;
    margin-left: 5%;
    margin-right: 5%;
}
a {
    font-size: 1em;
    color: inherit;
    text-decoration: none;
}
@media screen and (min-width: 800px) and (max-width: 1240px) {
    a {
        font-size: 1em;
    }
}
a:hover {
    color: #526cfe;
}
.main-container {
    font-size: 2em;
    margin-left: 5%;
    margin-right: 5%;
    @media screen and (min-width:1240px) {
        max-width: 1000px;
    }
    @media screen and (max-width:1240px) {
        max-width: 95%;
    }
    a {
        color: blue;
    }
}