.b-news {
    background-color: #2c3e50;
    padding-top: 25px;
    padding-bottom: 20px;
}

.b-categories {
    width: 900px;
    margin: 30px auto;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    justify-content: space-between;
    font-size: 1.6em;
    color: #fff;
}
.category {
    font-weight: 400;
    padding: 10px 15px;
    position: relative;
    z-index: 10;
    box-shadow:0 0 0 2px transparent, 0 0 0 4px transparent;
}
.category_active, .category:hover {
    color: #2c3e50;
    border-color: #fff;
    background-color: #fff;
    box-shadow:0 0 0 2px #2c3e50, 0 0 0 4px #fff;
}
.b-news__top {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    justify-content: center;
    position: relative;
    margin-bottom: 15px;
}


.b-news__bottom {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    justify-content: space-between;
    height: 250px;
}
.b-news__instagram {
    overflow: hidden;
}
.b-news__instagram-wrap {
    width: 250px;
    height: 250px;
}
.b-news__instagram iframe {
    margin-top: -50px;
}

.b-news__twitter {
    background-color: #fff;
    height: 250px;
    width: 460px;
}



.b-news__control {
    display: none;
    position: absolute;
    top: 40%;
    width: 50px;
    height: 150px;
    color: #fff;
    font-size: 1.2em;
}
.b-news__control_left {
    left: -80px;
}
.b-news__control_right {
    right: -85px;
    text-align: right;
}
.news__control-button {
    display: block;
    position: relative;
    width: 50px;
    height: 50px;
    border: 1px solid #1b2835;
    z-index: 1;
    margin-bottom: 10px;
}
.news__control-button i {
    position: absolute;
    top: -5px;
}
.b-news__control_left .news__control-button i {
    left: -5px;
}
.b-news__control_right .news__control-button i {
    right: -4px;
}
.news__control-button::before {
    content:'';
    top: -5px;
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    border: 1px solid #fff;
    z-index: 0;
    -webkit-transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    -ms-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
}
.b-news__control_left .news__control-button::before {
    left: -5px;
}
.b-news__control_right .news__control-button::before {
    right: -5px;
}
.news__control-button:hover {
    border-color: transparent;
}
.news__control-button:hover::before {
    background-color: #fff;
    background-color: #1b2835;
    border-color: #1b2835;
}