body{
    margin:0;
}
.not_found_content {
    background: #23618e;
    width: 100%;
    height: 100vh;
}
.not_found_background{
    position: absolute;
    top: 0px;
    right: 0px;
    bottom: 0px;
    left: 0px;
    opacity: 0.27;
    background-position: center;
    background-size: cover;
    background-image: url("404-background.jpg");
}

.not_found_all {
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    text-align: center;
    margin-top: 25vh;
}
h1.not_found_title {
    color: white;
    font-size: 150px;
    font-weight: bold;
    font-family: verdana;
    margin: 0;
}
h3.not_found_head_text {
    color: white;
    font-size: 35px;
    margin: 0;
    font-weight: 800;
    font-family: verdana;
}
.text_found {
    color: #c3e7ff;
    font-size: 18px;
    font-family: verdana;
    margin-top: 20px;
}

/*  mobile css  */
@media(max-width: 992px){
    h1.not_found_title{
        margin-top: 50px;
    }
}