* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    padding: 10px;
    background-color: white;
}

.khung-chua {
    width: 1000px;
    margin: 0 auto;
}

.the-san-pham {
    float: left;
    width: 240px;
    border: 1px solid black;
    margin: 5px;
    padding: 10px;
    height: 380px;
}

.hop-hinh-anh {
    width: 100%;
    height: 160px;
    background-color: lightgray;
    position: relative;
    border: 1px solid darkgray;
}

.nhan {
    position: absolute;
    bottom: 0;
    left: 0;
    color: white;
    font-size: 11px;
    padding: 2px;
}

.nhan.cam {
    background-color: orange;
}

.nhan.do {
    background-color: red;
}

.ten {
    font-size: 15px;
    font-weight: bold;
    margin-top: 10px;
    height: 40px;
}

.gia {
    color: red;
    font-weight: bold;
    margin-top: 5px;
}

.danh-gia {
    font-size: 12px;
    margin-top: 5px;
}

.danh-gia span {
    color: gray;
}

.khuyen-mai {
    font-size: 11px;
    margin-top: 10px;
    color: black;
}