* {
    box-sizing: border-box;
}
html {
    height: 100%;
}
body {
    min-height: 100%;
    line-height: 1.5;
    background: #ffffff;
    background-position: fixed;
    margin: 0;
    font-family: "source sans pro", "helvetica neue", Arial, sans-serif;
    font-size: 14px;
    color: #34495E;
}


.btn i {
    width: 1em;
}


#container {
    width: 900px;
    margin: auto;
}


header .logo {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 0 20px 0;
}
header .logo img {
/*    height: 52px;*/
}
header .description {
    margin-bottom: 64px;
    font-size: 18px;
    text-align: center;
}
header .menu-buttons {
    border-bottom: solid 1px #ffffff;
    margin-bottom: 48px;
    padding: 12px 8px;
    text-align: right;
}
header .menu-buttons .btn {
    margin-left: 10px;
}


.block {
    background: #f5f5f5;
    border-radius: 4px;
    padding: 20px;
}
.block-title {
    margin-bottom: 8px;
    font-size: 120%;
}


footer {
    margin: 32px 0;
    color: #aaaaaa;
    text-align: center;
}


#about .columns1 {
    display: flex;
}
#about .columns1 > div {
    width: calc((100% - 20px) / 2);
}
#about .columns1 > div:not(:last-of-type) {
    margin-right: 20px;
}
#about .columns1 ul {
    padding: 0 20px 0 32px;
}
#about .columns1 ul li {
    margin-bottom: 10px;
}