indexCss.css

*{
    padding: 0px;
    margin: 0px;
    font-family: 'Raleway', sans-serif;
    text-decoration:none;
    list-style: none;
    box-sizing: border-box;
}

.header__nav{
    background: cadetblue;
    height:80px;
    width: 100%;
}
.header__h1{
    position: absolute;
    padding: 25px 50px;
}
.header__ul{
    float: right;
    margin-right: 20px;
}
.header__li{
    display: inline-block;
    line-height:80px;
    margin: 0 5px;
}
.header__a{
    color:#fff;
    font-size: 18px;
    padding: 7px 13px;
    border-radius: 3px;
    text-transform: uppercase;
}

.header__a:hover{
    background: blue;
    transition: .5s;
}

.checkbtn{
    font-size: 30px;
    color: #ffffff;
    float: right;
    line-height: 80px;
    margin-right: 40px;
    cursor: pointer;
    display: none;

}
#check{
    display: none
}
@media (max-width: 1087px) {
    .header__h1{
        padding-left:20px ;
        font-size: 20px;
        line-height: 30px;
    }
    .header__a{

        font-size: 12px;

    }
}
@media (max-width: 858px) {
    .checkbtn{
        display: block;
    }
    .header__ul{
        position: fixed;
        width: 100%;
        height: 100vh;
        background: #2c3e50;
        top: 80px;
        left: -100%;
        text-align: center;
        transition: all .5s ;
    }
    .header__li{
        display: block;
        margin: 50px 0;
    }
    .header__a{
        font-size: 20px;
    }
    .header__a:hover{
        background: none;
        color: red;
    }
    #check:checked~ul{
        left: 0;
    }
}


/*