.content  :nth-child(1) {
    position: relative;
    font-size: 0;
}
.content  :nth-child(1) p{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%);
    margin: 0 auto;
    font-size: 52px;
    color: #FFFFFF;
}
.content  :nth-child(1) img{
    height: auto;
    width: 100%;
}
.content  :nth-child(2) {
    font-size: 0;
}
.content  :nth-child(2) img{
    height: auto;
    width: 100%;
}
.content  :nth-child(3) {
    font-size: 0;
}
.content  :nth-child(3) img{
    height: auto;
    width: 100%;
}
.content  :nth-child(4) {
    text-align: center;
    font-size: 0;
}
.content  :nth-child(4) img{
    margin-top: 60px;
    height: auto;
    width: 272px;
}
.content  :nth-child(4) div {
    height: 60px;
    width: 180px;
    background-color: red;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 60px;
    margin: 64px auto 110px;
}
.content  :nth-child(5) {
    font-size: 0;
}
.content  :nth-child(5) img{
    height: auto;
    width: 100%;
}