.contact1{}

.contact1_title{font-size: 38px;text-align: left;font-weight: 500;font-family: Roboto;}
.contact1_text{font-size: 14px;text-align: left;margin: 70px 0 30px;}
.contact1_line{width: 100%;height: 1px;background: #000;}
.text_box p{margin: 20px 0;display: block;width: 100%;line-height: 24px;font-weight: 400px;font-family: Roboto;letter-spacing: 1px;}
.contact1_icon{}

.contact1_icon img{width:50% ;margin: 0 auto;display: block;}

.certificate{width: 100%;height: auto;}


@media screen and (min-width: 645px) {
.box{display: block;}
.m_box{display: none;}
.m_plane{display: none;}
.text_box{padding:300px 0 200px;margin-left: 150px; display: block;width: 45%;}
.certificate_box{width: 840px;margin: 50px auto;border: 1px solid #000;}
.certificate_box img{width: 800px;margin: 20px auto;display: block;}
.contact1_icon div{float: left;width: 24.5%;margin-top: 50px;}
}
@media screen and (max-width: 640px) {

.text_box{ display: block;width: 85%;margin: 0 auto;}
.certificate_box{width: 95%;margin: 1rem auto;border: 1px solid #000;}
.certificate_box img{width: 100%;margin: 1rem auto;display: block;}
.contact1_icon div{float: left;width: 24.5%;margin-top: 1rem;}

}