.contact_main{
    width: 50%;
    margin: 40px auto;
    max-width: 980px;
    padding: 10px 0;
}
.contact_main p{
    margin: 40px auto;
    text-align: center;
}
.thanks_main{
    width: 50%;
    margin: 100px auto;
    max-width: 980px;
    padding: 30px 50px;
    background-color: rgba(255,255,255,0.60);
    border-radius: 20px;
    box-shadow: 0 0 7px rgba( 0, 0, 0, 0.2 );
}
.thanks_main_top{
    font-size: 1.4rem;
}

@media screen and (max-width:900px){
    .contact_main{
    width: 70%;
    margin: 40px auto;
    max-width: 780px;
    padding: 10px 0;
}
.contact_main p{
    margin: 20px auto;
    text-align: center;
}
.thanks_main{
    width: 70%;
    margin: 100px auto;
    max-width: 980px;
    padding: 30px 50px;
    background-color: rgba(255,255,255,0.60);
    border-radius: 20px;
    box-shadow: 0 0 7px rgba( 0, 0, 0, 0.2 );
}
.thanks_main_top{
    font-size: 1.4rem;
}
}
@media screen and (max-width:480px){
    .contact_main{
    width: 80%;
    margin: 20px auto;
    max-width: 480px;
    padding: 10px 0;
}
.contact_main p{
    margin: 20px auto;
    text-align: left;
}
.thanks_main{
    width: 80%;
    margin: 50px auto;
    max-width: 480px;
    padding: 20px 30px;
    background-color: rgba(255,255,255,0.60);
    border-radius: 20px;
    box-shadow: 0 0 7px rgba( 0, 0, 0, 0.2 );
}
.thanks_main_top{
    font-size: 1.2rem;
}
}