h1, h2 {
    text-align: center;
}

p {
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    font-family: Arial, Helvetica, sans-serif;
}

img {
    height: 300px;
    width: 300px;
}
img.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    border: 5px double black;
}

button {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

input {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

body {
    background-color: rgb(90,110,130)
}

tr:nth-child(even) {
    background: rgb(90,110,130)
}

tr:nth-child(odd) {
    background: rgb(110,130,150)
}

hr {
    border: 3px solid black;
    background-color: rgb(0,0,0)
}

table, th, td {
    border: 1px solid black;
    margin: 10px;
    padding: 10px;
}

th, td {
    text-align: left;
}

td {
    vertical-align: bottom;
}

ol {
    list-style: square;
}

a:link {
    color: blue;
}

a:visited {
    color: purple;
}

a:hover {
    color: black;
}

a:active {
    color: blue;
}

.center {
    margin-left: auto;
    margin-right: auto;
}

.box {
    margin-left: auto;
    margin-right: auto;
    padding: 5px;
    border: 10px solid black;
}

.under {
    text-decoration: underline black;
}

.italic {
    font-style: italic;
}

.oblique {
    font-style: oblique;
}

/* Responsive Styling */
@media (max-width: 1199px) {
    h1 {
        font-size: 56px;
    }
    h2 {
        font-size: 50px;
    }
    button {
        font-size: 20px;
    }
}
@media (max-width: 991px) {
    h1 {
        font-size: 44px;
    }
    h2 {
        font-size: 40px;
    }
    p {
        padding: 0 10px;
    }
    button {
        padding: 0 10px;
    }
}
@media (max-width: 767px) {
    h1 {
        font-size: 24px;
    }
    h2 {
        font-size: 20px;
    }
    p {
        font-size: 18px;
    }
    button {
        font-size: 18px;
    }
}