* {
    margin: 0;
    padding: 0;
}
body {
    background-color: #f5f7fa;
}
#ACU_body {
    border: 1.5px #4fc3f7 solid;
    width: 95%;
    margin: 3% auto;
    border-radius: 10px;
}
.ACU_box {
    width: 95%;
    margin: 3% auto;
}
h3 {
    font-size: 26px;
    color: #2196f3;
    margin: 1% 1% 1% 0%;
}
hr {
    border: 0.5px #2196f3 solid;
}
img {
    max-width: 100%;
    margin: 50px 0 0 0;
}
pre {
    color:#2196f3;
    font-size: 18px;
    font-weight: 900;
    line-height: 30px;
}
.ACU_box .ACU_box-cont1 {
    float: left;
    max-width: 55%;
}
.ACU_box .ACU_box-cont2 {
    float: right;
    width: 40%;
}
.ACU_box div {
    width: 100%;
    height: 600px;
}