/*选自github开源项目 https://github.com/mariagaa993/imgEffect，对其中部分进行了修改 yulinqin@pku.edu.cn*/
.container {
    border: 10px solid #ffffff;
    box-shadow: 1px 1px 5px #000;
    margin: 3% auto;
    overflow: hidden;
    position: relative;
    width: 100%;
}

.container img {
    display: block;
    max-width: 100%;
    position: relative
}

.overlay {
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
}

.overlay h1 {
    background: rgba(255, 255, 255, 0.3);
    color: #000000;
    font-family: 'Righteous', cursive;
    font-size: 25px;
    margin: 20px 0 0 0;
    padding: 10px;
    position: relative;
    text-align: center;
    text-transform: uppercase;
}

.overlay p {
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    padding: 10px 20px 20px;
    position: relative;
    text-align: center
}

.content .overlay {
    background-color: rgba(219,127,8, 0.7);
    opacity: 0;
    transition: all 0.4s ease-in-out;
}

.content h1 {
    transition: all 0.2s ease-in-out;
    transform: translateY(-100px);
    opacity: 0;
}

.content p {
    transition: all 0.2s linear;
    transform: translateY(100px);
    opacity: 0;
}

.content:hover .overlay {
    opacity: 1;
}

.content:hover h1,
.content:hover p {
    opacity: 1;
    transform: translateY(0px);
}

.content:hover p {
    transition-delay: 0.1s;
}