button[disabled] {
    color: #888;
    opacity: 0.4;
}

.navbar-brand {
    cursor: pointer;
}

.navbar li {
    list-style-type: none;
    cursor: pointer;
}


pre {
    overflow-x: auto;
}
pre code {
    overflow-wrap: normal;
    white-space: pre;
}


.container {
    margin-left: 15px;
    margin-right: 15px;
    width: 1300px;
}


.example-enter {
    opacity: 0.01;
    transition: opacity .5s ease-in;
}

.example-enter.example-enter-active {
    opacity: 1;
}
.example-leave {
    opacity: 1;
    transition: opacity .5s ease-in;
}

.example-leave.example-leave-active {
    opacity: 0.01;
}

div.picture{
    display: inline-block;
    margin: 5px;
    cursor:pointer;
    position: relative;
}

div.picture.favorite:after{
    content: '❤';
    position: absolute;
    font-size: 80px;
    line-height: 200px;
    color: #FF224D;
    width: 100%;
    text-align: center;
    left: 0;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.5);
    font-weight: bold;
}

.pictures, .favorites{
    white-space: nowrap;
    overflow-y: auto;
    margin-bottom: 20px;
    height: 230px;
    background-color: #F3F3F3;
}

.pictures p, .favorites p {
    padding-top: 100px;
    font-size: 13px;
}

section.demo {
  padding-bottom: 0.5em;
}