.bellows {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

.bellows__header {
    position: relative;
    padding: 15px 20px;
    border: 1px solid #fff;
    border-width: 0 0 1px;
    background: #2da4a8;
    color: #fff;
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0px 0px 7px 1px #e3e3e3;
}

.bellows__header:active {
    background: #2980b9
}

.bellows__header::before,.bellows__header::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 20px;
    z-index: 2;
    display: block;
    width: 16px;
    height: 4px;
    margin-top: -2px;
    background: #fff;
    pointer-events: none;
    -webkit-transition: -webkit-transform .25s ease-in-out;
    transition: transform .25s ease-in-out
}

.bellows__header::before {
    content: '';
    -webkit-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg)
}

.bellows__header::after {
    -webkit-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    transform: rotate(90deg)
}

.bellows__item.bellows--is-open>.bellows__header::before,.bellows__item.bellows--is-opening>.bellows__header::before {
    -webkit-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    transform: rotate(180deg)
}

.bellows__item.bellows--is-open>.bellows__header::after,.bellows__item.bellows--is-opening>.bellows__header::after {
    -webkit-transform: rotate(360deg);
    -ms-transform: rotate(360deg);
    transform: rotate(360deg)
}

.bellows__item:last-child>.bellows__header {
    border-bottom: 0
}

.bellows__header h1,.bellows__header h2,.bellows__header h3,.bellows__header h4 {
    margin: 0
}

.bellows__content {
    padding: 20px;
    border: 1px solid #ecf0f1
}

.bellows__content .bellows {
    margin-top: 20px
}