*{margin: 0;padding: 0;}

html,body {
    width: 100%;
    height: 100%;
}


.maintext {
    width: 60%;
    background-color: rgba(0,0,0,.3);
    padding: 20px;
    position: absolute;
    bottom: 10px;
    left: 10px;
    color: #fff;
}
.maintext h1 {
    font-size: 25px;
    font-weight: 900;
    margin-bottom: 10px;
}
.maintext h2 {
    font-size: 13px;
    font-weight: 900;
    border-bottom: 1px solid #fff;
    margin-bottom: 10px;
    padding-bottom: 10px;
    color: #ed000b;
}
.maintext p {
    line-height: 15px;
    font-size: 10px;
    color: #fff;
}

.mainbanner {
    height: 100%;
    background-image: url(../image/c1.jpg);
    background-position: bottom;
    background-size:cover;
    background-repeat: no-repeat;
}