body{
    background-color: grey;
}

.main_table{
    /*border: 1px solid #000;*/
    width: 75%;
    margin: auto;
    background-color: #595959;
    margin-top: 15px;
    border-radius: 15px;
}

.left_block{
    /*float: left;*/
    width: 25%;
    vertical-align: top;
}

.right_block {
    text-align: justify;
    padding-right: 15px;
    padding-bottom: 25px;
}

.img1 {
    float: left;
    padding-right: 20px;
    padding-bottom: 20px;
}

.img_top{
    margin: auto;
    display: block;
    width: 75%;
    border-radius: 15px;
    height: 300px;
}

.tr_title {
    font-weight: bold;
    text-align: center;
    font-size: 40px;
    color: #6d6;
    line-height: 97px;
}

.menu{
    background-color: #595959;
    line-height: 40px;
    padding-left: 15px;
    font-size: 20px;
}

.menu a{
    color: azure;
}

.menu a:hover{
    color: #88cc88;
}

.menu a:visited{
    color: whitesmoke;
}

.menu:hover{
    background-color: #333;
}

.menu a:active{
    color: antiquewhite;
}

.correct{
    color: #68ff68;
}

.wrong{
    color: #ff6868;
}


.contacts {
  border: 0;
  width: 50%;
  padding: 0;
  margin: 0;
}

.contacts tr:hover {
  background-color: #9d9;
}

.contacts td{
  width: 50%;
}

.contacts tr{
    line-height: 35px;
    text-align: center;
}







.footer{
        margin: auto;
        padding-top: 50px;
        text-align: center;
}