.body {
    margin: 0;
} 
/*header*/
.header {
    min-height: 300px;
    padding-top: 80px;
    text-align: center;
    background-image: url('../../img/2.jpg');
}
.header__title {
    color: #fff;
    font-size: 4em;
    font-style: italic;
    letter-spacing: 0.2em;
    margin-bottom: 5%;
}
.header__info {
    width: 30%;
    margin: auto;
    border: 1px solid #fff;
    border-radius: 30px;
}
.header__info_second {
    margin-top: 2%;
}
.header__anchor {
    color: #fff;
    font-size: 1.5em;
    font-style: italic;;
    font-weight: bold;
    text-decoration: none;
}
/*navigation*/
.navigation__avblock {
    padding-top: 1%;
    padding-bottom: 1%;
    text-align: center;
    background: steelblue;
    border: 1px solid #003366;
}
.navigation__anchor {
    text-decoration: none;
    color: #fff;
    font-style: italic;
    font-weight: bold;
    font-size: 1.2em;
}
.navigation__choice {
    background: steelblue;
    text-align: center;
    border: 1px solid #003366;
}
.navigation__title {
    color: #003366; 
    margin-top: 0;
    margin-bottom: 0;
}
.navigation__choiceitem {
    margin-bottom: 2%;
    text-align: center;
}
.navigation__choiceitem_first {
    flex-basis: 50%;
}
.navigation__choiceitem_second {
    flex-basis: 50%;
}
.navigation__choiceitem_third {
    flex-basis: 50%;
}
.navigation__choiceitem_fourth {
    flex-basis: 50%;
}
.navigation__form {
    display: flex;
    flex-wrap: wrap;
}   
.navigation__label {
    font-weight: bold;
    font-size: 1.2em;
}    
.navigation__input {
    margin-top: 2%;
    font-weight: bold;
}  
.navigation__selection {
    margin-top: 2%;
    font-size: 1.2em;
    font-weight: bold;
} 
.navigation__curdate {
    margin-left: 40%;
    margin-top: -2%;
} 
.navigation__button {
    height: 30px;
    border-radius: 30vw;
    font-weight: bold;
    font-size: 1.4em;
    margin-top: -2%;
    margin-left: 70%;
    margin-bottom: 2%;
} 
/*main part*/
.mainpart {
   min-height: 500px;
   text-align: center;
}
.mainpart__table {
    border: 2px solid red;
    margin: auto;
    margin-bottom: 5%; 
}
.mainpart__tableTitle {
    border: 2px dashed green;
    background-color: lightblue; 
}
.mainpart__tableCell {
    border-top: 2px dashed green;
    border-left: 2px dashed green;
    border-right: 2px dashed green;
    background-color: yellow; 
}  
.mainpart__par {
    border-bottom: 2px dashed green;
    margin-top: 0;
    margin-bottom: 0;
}  
.mainpart__paragraph {
    text-align: justify;
    padding-left: 10%;
    padding-right: 10%;
    font-size: 1.2em;
}
/*footer*/
.footer {
    padding: 1%;
    background: steelblue;
    border: 1px solid #003366;
    font-weight: bold;
    font-size: 1.1em;
    display: flex;
}
.footer__copyright {
    flex-basis: 30%;
    font-style: italic;
    color: #003366;
}
.footer__info {
    flex-basis: 30%;
    font-style: italic;
    color: #003366;
}
.footer__share {
    flex-basis: 40%;
    display: flex;
}
.footer__anchor {
        color: #003366; 
        text-decoration: none;
        text-shadow: 2px 2px #fff;
}
.footer__anchor:hover,
.footer__anchor:active {
    color: red;
    text-shadow: 2px 2px orange;
}

@media screen and (max-width: 650px) {
    .header__title {
        font-size: 1.2em;
    }
    .header__anchor {
        font-size: 1em;
    }
    .navigation__title {
        font-size: 1em;
    }
    .navigation__label {
        font-size: 0.8em;
    }  
    .navigation__button {
        font-size: 1em;
    }
    .footer__copyright {
        display: none;
    }
    .footer__info {
        display: none;
    }
    .footer__share {
        flex-basis: 100%;
        text-align: center;
        margin-left: 0;
        padding-left: 0;
    }
    .footer__anchor {
        margin-left: -2.5%;
    }
}

@media screen and (max-width: 750px) {
    html {
        width: 100%;
    }
    body {
        width: 97%;
    }
    .mainpart__tableCell5 {
      display: none;
    }  
    .mainpart__tableTitle5 {
        display: none;
    }  
    .mainpart__tableCell3 {
        display: none;
      }  
      .mainpart__tableTitle3 {
          display: none;
      }  
      .mainpart__tableCell2 {
        display: none;
      }  
      .mainpart__tableTitle2 {
          display: none;
      }  
}