* {
    margin: 0;
    padding: 0;
    border: 0;
}

#div_digg1 {
    padding: 5px;
    position: fixed;
    _position: absolute;
    z-index: 1000;
    bottom: 5%;
    left: 0px;
    _left: 0px;
    border: 0;
}

#home {
    border-radius:18px;
    margin: 0 auto;
    width: 89%;
    min-width: 950px;
    background-color: #fff;
    padding: 30px;
    margin-top: 160px;
    margin-bottom: 50px;
    box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
    opacity: 0.7;
}


#blogTitle h1 a {
    color: #000000;
    font-size: 50px;
}
a:visited {
    color: black;
    text-decoration: none;
}
a:link {
    color: black;
    text-decoration: none;
}
a {
    outline: none;
    color: #21759b;
}
* {
    margin: 0;
    padding: 0;
    border: 0;
}
* {
    margin: 0;
    padding: 0;
}
user agent stylesheet
a:-webkit-any-link {
    color: -webkit-link;
    cursor: pointer;
    text-decoration: underline;
}
#blogTitle h1 {
    font-size: 26px;
    font-weight: bold;
    line-height: 1.5em;
    margin-top: 20px;
}
h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
    font-weight: normal;
}
user agent stylesheet
h1 {
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}
body {
    color: #000;
    background-color: #e6e6e6;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 12px;
    min-height: 101%;
}
body {
   
}

<--禁止复制-->
body{
background-image: url(https://files.cnblogs.com/files/suosiyu/iphone-xr-blue-stock-jv-1920x1080.bmp);
background-attachment: fixed;
eftmargin=0;
topmargin=0 ;
oncontextmenu='return false';
ondragstart='return false';
onselectstart ='return false';
onselect='document.selection.empty()' ;
oncopy='document.selection.empty()' ;
onbeforecopy='return false';
onmouseup='document.selection.empty()';
font-family: Helvetica,Verdana,Arial,sans-serif;
}