*{
    margin: 0 auto;    
    box-sizing: border-box;
}
body{
    font-family: 'Roboto', 'Oswald', 'Arial', sans-serif;
    font-size: 14px;
    width: 100%;
    overflow-x: hidden;
    background: var(--mau_background_trang);
}
body.loading:after{
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: url(loading.gif) center 80px no-repeat #0a283b82;
    background-size: 15px;
}
body.disable-scroll {
    overflow: hidden;
}
.hidden {
    visibility: hidden;
    opacity: 0;
    z-index: -999 !important;
}
.displaynone{
    display: none!important;
}
.box-container {
    width: 860px;
    max-width: 100%;
    position: relative;
    padding: 0 23px;
}
.box-row {
    margin: 0 -23px;
    clear: both;
    display: block;
    width: calc(100% + 46px);
}
.box-col {
    padding: 0 23px;
    float: left;
}
.text-left {
    text-align: left;
}
.text-center {
    text-align: center;
}
.text-justify {
    text-align: justify;
}
.text-right {
    text-align: right;
}
.text-uppercase{
    text-transform: uppercase;
}
.text-capitalize{
    text-transform: capitalize;
}
img,
iframe {
    max-width: 100%;
}
a{
    text-decoration: none;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px #fff inset !important;
}

.loading{
    background: url('loading.gif') center no-repeat;
    background-size: 25px;
}

/* Nội dung chính */
main{
    width: 100%;
	max-width: 815px;
    clear: both;
    padding-top: 102px;   
    overflow-x: hidden;
    background: var(--mau_background_trang);
}