*{
    box-sizing: border-box;
}
#main{
    width: 92%;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    padding: 25px 0 0 0;
}
#main a{
    text-decoration: none;
    color: #0067b8;
}
.main_1,
.main_2,
.main_3,
.main_4{
    width: 25%;
    height: 70vh;
    background-color: rgba(0, 255, 255, 0);
    padding: 25px 12px 0 12px;
}
.main_1_1{
    width: 100%;
    height: 50%;
    background-image: url("../images/RE2FHD0.png");
    background-size: cover;
    background-position: center;
}
.main_2_1{
    width: 100%;
    height: 50%;
    background-image: url("../images/RWfbJT.jpg");
    background-size: cover;
    background-position: center;
}
.main_3_1{
    width: 100%;
    height: 50%;
    background-image: url("../images/RE1uWfh.jpg");
    background-size: cover;
    background-position: center;
}
.main_4_1{
    width: 100%;
    height: 50%;
    background-image: url("../images/RWlux6.jpg");
    background-size: cover;
    background-position: center;
}
@media screen and (max-width:1070px){
    #main{
        display: flex;
        flex-wrap: wrap;
    }
    .main_1,
    .main_2,
    .main_3,
    .main_4{
        width: 50%;

    }
}
@media screen and (max-width:540px){
    #main{
        display: flex;
        flex-wrap: wrap;
    }
    .main_1,
    .main_2,
    .main_3,
    .main_4{
        width: 100%;

    }
}