*{
    padding: 0;
    margin: 0;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
}
.nav{
    width: 100%;
    height: 80px;
    background-color: #44C2AB;
}
.center{
    width: 1000px;
    margin: 0 auto;
}
.logo{
    float: left;
    margin-left: 40px;
}
.logo img{
    height: 80px;
}
.nav li{
    float: left;
    line-height: 80px;
    text-align: center;
    font-size: 18px;
}
.nav li a{
    display: block;
    color: #444;
    width: 100px;
    margin: 0 20px;
}
.nav li a.highlight{
    color: white;
}
.nav li a:hover{
    color: #d7e464;
}
.banner{
    height: 380px;
    background: rgb(30, 0, 110) url(../img/banner.png) no-repeat center;
}

.drug_nav{
    margin-top: 10px;
    height: 40px;
    line-height: 40px;
    background-color: #44C2AB;
    text-indent: 1em;
    border-radius: 2px;
    font-size: 18px;
    position: relative;
}
.drug_nav p:nth-child(2){
    position: absolute;
    line-height: 40px;
    right: 0px;
    top: 0px;
    width: 100px;
    background-color: #44C2AB;
    border: 0px;
}
.drug_nav p:nth-child(2):hover{
    cursor:pointer;
}

footer{
    padding-top: 15px;
    padding-bottom: 30px;
    background-color: #44C2AB;
}
footer li{
    text-align: center;
    line-height: 40px;
}
section .center .list{
    min-height: 600px;
}
.yaopin{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-content: flex-start;
    margin-bottom: 40px;
}
.yaopin div{
    width: 30%;
    height: 300px;
    
    display: flex;

    flex-direction: column;
    justify-content: center;
    align-items: center;
    
    /* border: 2px solid green; */

    margin-top: 10px;
}
.yaopin div img{
    width: 70%;
    margin-bottom: 10px;
}
.yaopin div:hover img{
    opacity: 0.5;
}
.yaopin div:hover{
    cursor: pointer;
}
.yaopin div:hover p{
    opacity: 0.5;
}
footer li a{
    color: #444;
}
footer li{
    line-height: 32px;
    color: #444;
}