* {
    box-sizing: border-box;
}
html {
    height: 100%;
    color: #98999D;
    font-size: 14px;
    font-family: Helvetica, Arial, sans-serif;
    line-height: 140%;
}
body {
    padding: 0;
    margin: 0;
    background: white;
    min-height: 100%;
    height: 100%;
}
h1, h4 {
    line-height: normal;
    font-family: Trebuchet MS, Helvetica, Arial, sans-serif;
}
h1 {
    color: #01A9FF;
    font-size: 46px;
    font-weight: normal;
}
h4 {
    color: #01A9FF;
    font-size: 16px;
    margin: 10px 0;
}
h4 > span {
    display: inline-block;
    vertical-align: top;
}

a {
    color: #01A9FF;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
a img {
    border: none;
}
.c_blue {
    color: #01A9FF;
}
.paragraph {
    margin: 0 40px 45px 40px;
}
.ta_l {
    text-align: left;
}
.m_r10 {
    margin-right: 10px;
}
.m_r5 {
    margin-right: 5px;
}
.icon_20 {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-repeat: no-repeat;
    background-position: center center;
}
.hr {
    border-bottom: 2px solid #D6D8D8;
}

.page {
    text-align: center;
    height: 100%;
}
.page__vcenter_after {
    width: 0;
    height: 100%;
    display: inline-block;
    vertical-align: middle;
}
.page__item {
    padding: 60px 0;
    display: inline-block;
    vertical-align: middle;
    width: 850px;
}

.header__image {
    width: 140px;
    height: 100px;
    margin: auto;
    background-repeat: no-repeat;
    background-position: center center;
    background-image: url('../images/header-main.png');
}

.browsers__ref {
    display: inline-block;
    text-decoration: none!important;
    margin: 10px 0px;
    vertical-align: top;
    width: 140px;
}
.browsers__icon {
    width: 48px;
    height: 48px;
    margin: auto;
    margin-bottom: 20px;
    background-repeat: no-repeat;
    background-position: center center;
}
.browsers__title {
    text-decoration: underline;
    font-size: 13px;
}
.browsers__subtitle {
    color: #98999D;
    font-size: 11px;
    line-height: 14px;
}

.browsers__icon_chrome {
    background-image: url('../images/icon-chrome.png');
}
.browsers__icon_msie {
    background-image: url('../images/icon-ie.png');
}
.browsers__icon_firefox {
    background-image: url('../images/icon-firefox.png');
}
.browsers__icon_safari {
    background-image: url('../images/icon-safari.png');
}

.icon20__check {
    background-image: url('../images/icon-check.png');
}
.icon20__warning {
    background-image: url('../images/icon-warning.png');
}

.upgrade__list {
    margin: 0;
    padding: 0;
    list-style: none;
}
.upgrade__list > * {
    margin-bottom: 2px;
}