body{
    margin: 0;
    padding: 0;
}
.top{
    position: sticky;
    top: 0;
    z-index: 100;
    /* min-width: 100vw; */
    /* background-color: antiquewhite; */
}
.details{
    display: flex;
    
}
header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding:  5px 5px;
    min-height: 50px;
    background-color: white
}
header a{
    text-decoration: none;
    color: black;
    display: flex;
    align-items: center;
    padding: 5px;
}
header .img{
    margin-left: 10px;
}
.nav1{
    display: flex;
}
.nav1 form{
    display: flex;
    margin-top: 6px;
    border-width: 1px;
}
header a:hover{
    background-color: rgb(51, 196, 51);
    color: white;
}
.search input{
    border-radius: 40px 40px 40px 40px;
    border-style: solid;
    border-color: black;
    width: 200px;
    padding: 10px;
    height: 70%;
}
@media (max-width:900px){
    .search{
        display: none;
    }
    
}
/* .search button{
    border-radius: 0px 40px 40px 0px;
    height: 100%;
    border-style: none; */

.nav1 a{
    margin-right: 30px;
}
.icons img{
    padding: 5px;
}
.icons img:hover{
    background-color: rgb(234, 232, 232);
    border-radius: 10px;

}
.nav3{
    display: flex;
    justify-content: space-between;
    /* padding: 10px; */
    min-width: 254px;
}
.btn1{
    border-radius: 15px;
    border: transparent;
    height: 6vh;
    min-width: 6vw;
    background-color: white;
    z-index: 0;
}
.btn1:hover{
    background-color: rgb(234, 232, 232);
}
.btn3{
    border-radius: 15px;
    margin-right: -15px;
    border: transparent;
    height: 6vh;
    min-width: 6vw;
    background-color: rgb(17, 198, 17);
    z-index: 100;
    
}
.btn4{
    
    border-radius: 15px;
    border: transparent;
    height: 6vh;
    min-width: 6vw;
    background-color: rgb(182, 235, 182);
    z-index: 0;
}
.btn3:hover{
    background-color: rgb(97, 203, 97);
}
.btn4:hover{
    background-color: rgb(17, 198, 17);

}
/* {header section ends} */
nav{
    background-color: black;
    /* width: 100vw; */
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    overflow-y: scroll ;
    /* padding: 10px; */
}
nav a{
    padding: 10px;
}
nav a:hover{
    background-color: rgb(79, 77, 77);
}
@media (max-width:720px){
    nav{
        /* min-width: 205vw; */
        display: none;
    }
}
.sidebar{
    display: flex;
}
.txt1{
    margin-top: 90px;
    margin-left: 40px;
}
@media (max-width:720px){
    .txt1{
        padding: 20px;
        margin-left: 0;
    }
}
@media (max-width:950px){
    .txt1{
        padding: 20px;
        margin-left: 0;
    }
    .iframe{
        display: none;
    }
}
.iframe{ 
    border: 1px solid;
    border-color: lightgray;
    height: 85vh;
    overflow-y: scroll;
    padding: 10px;
    /* background-color: ; */
    position: sticky;
    left: 0;
    top: 14%;
    z-index: 0;
}
@media (max-width:900px){
    .iframe{
        display: none;
    }    
}
.iframe a{
    display: block;
    padding: 3px;
}
.iframe a:hover{
    background-color: rgb(181, 180, 180);
}
.txt2{
    display: flex;
    align-items: center;
}
/* @media (max-width:520px){
    .txt2 button{
        width: 10vw;
    }    
} */
.txt2 button{
    border: transparent;
    background-color: rgb(17, 198, 17);
    height: 6vh;
    min-width: 6vw;
    color: white;
    border-radius: 5px;
}
button:hover{
    background-color: rgb(125, 214, 125);
}
.txt3{
    margin-left: 700px;
}
.sd{
    display: flex;
}
.txt4{
    background-color: rgb(193, 237, 193);
    padding: 30px;
}
.txt4 .txt4-1{
    border: transparent;
    height: 6vh;
    min-width: 20vw;
    background-color: rgb(17, 198, 17);
    color: white;
    border-radius: 10px;
}
.txt4-1:hover{
    background-color: rgb(125, 214, 125);
}
.txt4 .txt4-2{
    border: transparent;
    height: 6vh;
    min-width: 15vw;
    color: white;
    background-color: rgb(40, 40, 40);
    border-radius: 10px;
}
.txt4-2:hover{
    background-color: rgb(79, 77, 77);
}
.txt5{
    background-color: rgb(237, 237, 237);
    padding: 30px;
    border-radius: 5px;
}
.txt5 h2{
    margin-top: 10px;
}
.txt6{
    background-color: white;
    padding: 10px;
    color: rgb(147, 103, 45);
}
.txt7 button{
    border-radius: 10px;
    border: transparent;
    background-color: rgb(17, 198, 17);
    color: white;
    height: 6vh;
    min-width: 10vw;
    margin-top: 15px;
}
.txt7 button:hover{
    background-color: rgb(96, 200, 96);
}
.txt8 button{
    border-radius: 5px;
    border: transparent;
    height: 6vh;
    min-width: 15vw;
}
.txt8 button:hover{
    background-color: rgb(17, 198, 17);
    color: white;
}
.txt9{
    background-color: rgb(31, 30, 30);
    color: white;
    border-radius: 5px;
    padding: 5px 15px 5px 15px ;
}
.txt10{
    background-color: white;
    color: black;
    padding: 5px;
}
.txt10 input{
    width: 3vw;
    border: none;
}
.txt11{
    background-color: lightgrey;
    padding: 10px;
    width: 50vw;
}
.txt9 a{
    color: black;
}
.txt12 button{
    border-radius: 5px;
    border: transparent;
    height: 6vh;
    min-width: 10vw;
    color: white;
    background-color: rgb(51, 196, 51);
}
.txt12 button:hover{
    background-color: rgb(96, 203, 96);
}
.txt13 button{
    background-color: #2196F3;
    color: white;
    border: transparent;
    min-width: 10vw;
    height: 5vh;
    border-radius: 5px;
}
.txt13 button:hover{
    background-color: rgb(78, 176, 228);
}
/* .txt14 button{
    width: 20vw;
    height: 9vh;
    border: transparent;
    border-radius: 10px;
    justify-content:space-evenly;
    
} */
.btns{
    margin-left: 60px;
}
@media (max-width:720px){
    .btns{
        /* min-width: 205vw; */
        margin-left: 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}
.txt15 button{
    margin-top: 12px;
    min-width: 20vw;
    height: 9vh;
    border: transparent;
    border-radius: 10px;
    /* justify-content: space-between; */
}
.txt15 button:hover{
    background-color: rgb(31, 30, 30);
    color: white;
}
.txt14{
    color: lightpink;
    padding: 60px;
    background-color: rgb(40, 40, 40);
    margin-top: 30px;
    border-radius: 10px;
    font-size: x-large;
}
.txt16 button{
    height: 9vh;
    min-width: 13vw;
    border-radius: 30px;
    border: transparent;
    background-color: rgb(17, 198, 17);
    color: white;
}
.txt16 button:hover{
    background-color: rgb(76, 210, 76);
}
.txt17{
    margin-top: 10px;
    display: flex;
    justify-content: space-between;

}
.txt17 .cc button{
    background-color: rgb(51, 196, 51);
    border: transparent;
    border-radius: 5px;
    height: 6vh;
    min-width: 7vw;
    color: white;
    margin-top: 90px;
   }
.txt17 .cc button:hover{
    background-color: rgb(125, 214, 125);
}
.txt17 .c button{
    border: solid 1px;
    border-radius: 5px;
    height: 6vh;
    min-width: 15vw;
    background-color: white;
    margin-top: 90px;
    
}
.txt17 .c button:hover{
    background-color: lightgrey;
}
footer{
    background-image: url(./img/background_in_space.gif) ;
    padding: 150px;
    background-color: antiquewhite;
    
}
.footer1{
    color: antiquewhite;
    justify-content: space-between;
}

/* @media (max-width:720px) {
    nav {
      display: none;
    }
    .iframe {
      display: none;
    }
    .search{
      display: none;
    }
    .nav3{
        display: none;
    }
  } */