.content{
    margin-bottom: 110px;
}
.content h1{
    text-align: center;
    color: #333333;
    margin: 55px auto;
}
.content li{
    float: left;
    width: calc((100% - 30px)/4);
    margin-bottom: 10px;
    margin-right: 10px;
    background-color: #ecf0f8;
    padding: 2%;
    transition: 0.5s;
}
.content li:nth-child(4n){
    margin-right: 0;
}
.content li .contact svg{
    vertical-align: middle;
    transition: 0.5s;
}
.content li .contact span{
    vertical-align: middle;
}
.content .name{
    margin-right: 20px;
}
.content .tit{
    margin-bottom: 20px;
}
.sub{
    color: #999999;
}
.content li:hover{
    color: white;
    background-color: #4e6eaf;
    transition: 0.5s;
}
.content li:hover .sub{
    color: white;
    transition: 0.5s;
}
@media screen and (max-width: 1440px) {
    .content{
        margin-bottom: 60px;
    } 
    .content h1 {
        margin: 40px auto;
    }
    .content .tit {
        margin-bottom: 10px;
    }
}
@media screen and (max-width: 768px) {
    .content{
        margin-bottom: 30px;
    } 
    .content li{
        width: 100%;
        margin-right: 0 !important;
        padding: 5%;
    }
    .content h1 {
        margin: 20px auto;
    }
}