@import url(https://fonts.googleapis.com/css?family=Roboto);

html {
    width: 100%;
    height: 100%;
    display: table;
    table-layout: fixed;
}

body {
    width: 100%;
    height: 100%;
    display: table-cell;
    vertical-align: middle;
    background: #f4f4f4;
}

.container {
    background: #e6e6e6;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

[class|="bloc"] {
    background: #1253c8;
    width: 100%;
    height: 50%;
    position: absolute;
    transition: all .5s ease;
}

.isOpen {
    /* opacity: .3; */
    transition: all .5s ease;
}

.bloc-1 {
    top: 0;
}

.bloc-1.isOpen {
    /* top: -50%; */
    height: 20%;
}

.bloc-2 {
    bottom: 0;
}

.bloc-2.isOpen {
    /* bottom: -50%; */
    height: 0;
}

.lock {
    background: #ffc107;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    position: absolute;
    bottom: 40px;
    right: 40px;
    margin: -20px;
    cursor: pointer;
}

.lock:active {
    width: 36px;
    height: 36px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.25);
    margin: -18px;
}

.title {
    color: #fff;
    font-family: 'Roboto', sans-serif;
    position: absolute;
    width: 100%;
    height: 20%;
    z-index: 1;
    text-align: center;
    top: 50%;
    font-size: 24px;
    margin-top: -10%;
    line-height: 60px;
    transition: all .5s ease;
}

.title.isOpen {
    top: 0;
    margin: 0;
}