* {
    box-sizing: border-box;
}

.page-main {
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cf {
    font-family: 'Open Sans', Arial, sans-serif;
    color: #333;
}
.cf:before,
.cf:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.cf:after {
    clear: both;
}

h1 {
    margin-bottom: 12px;
}

.subtitle {
    font-size: 18px;
}

img {
    margin-bottom: 24px;
    max-width: 100%;
    height: auto;
}

p {
    margin-top: 0;
    margin-bottom: 18px;
}

ul {
    margin-top: 0;
    margin-bottom: 24px;
    padding-left: 0;
    list-style: disc inside;
}

li:not(:last-child) {
    margin-bottom: 6px;
}

a {
    text-decoration: none;
    color: #2e68d4;
    border-bottom: 1px solid transparent;
    -webkit-transition: color .46s cubic-bezier(.7,0,.3,1),border-color .46s cubic-bezier(.7,0,.3,1),background-color .46s cubic-bezier(.7,0,.3,1);
    -o-transition: color .46s cubic-bezier(.7,0,.3,1),border-color .46s cubic-bezier(.7,0,.3,1),background-color .46s cubic-bezier(.7,0,.3,1);
    transition: color .46s cubic-bezier(.7,0,.3,1),border-color .46s cubic-bezier(.7,0,.3,1),background-color .46s cubic-bezier(.7,0,.3,1);
}

a:hover {
    color: #1c3563;
    border-bottom-color: #c3002f;
}

@media (min-width: 768px) {
    .fl-left {
        float: left;
        width: 50%;
        clear: left;
        padding-right: 12px;
    }

    .fl-right {
        float: right;
        width: 50%;
        padding-left: 12px;
    }
}