html{
    scroll-behavior: smooth;
}
*{
    margin: 0px;
    border: 0px;
    /* box-sizing: border-box; */
}
body{
    height: 100vh;
    background-image: url(Problem_bg.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    
}
.nav{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 5rem;
    color: rgb(250, 249, 248);
    backdrop-filter: blur(15px);
    padding-left: 50px;
    padding-right: 50px;
    
}
.menu{
    height: 74vh;
    width: 15rem;
    border: 2px dotted rgb(246, 255, 0);
    position: fixed;
    top: 105px;
    left: 15px;
    border-radius: 10px;
    padding: 25px 10px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-direction: column;
}
.op1{
    height: 35px;
    width: 100%;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
}
.op1 :hover{
    margin-left: 10px;
    color: aqua;
}
p{
    font-size: 30px;
    font-weight: 600;
    text-decoration: dotted;
}

.main{
    height: 80vh;
    padding: 1rem;
    backdrop-filter: blur(25px);
    margin-left: 20rem;
    margin-right: 20rem;
    width: auto;
    font-size: 19px;
   color: white;
   /* border: 2px solid yellow; */
   border-radius: 9px;
   margin-bottom: 80px;
   overflow-y: scroll;
   border: 2px;
   border-style: solid;
   border-color: yellow;
}
::-webkit-scrollbar{
    width: 1rem;
    border-radius: 5px;
}
::-webkit-scrollbar-track{
    background-color: #fff;
    border-radius: 15px;
}
::-webkit-scrollbar-thumb{
    background: linear-gradient(violet,blue,yellow,indigo,green,orange,red);
    border-radius: 10px;
    background-clip: content-box;
}
.back{
    
    color: white;
    font-size: 50px;
    padding-left: 50px;
    padding-top: 50px;
 }

.back :hover{
    font-size: 60px;
    color: chocolate;
}
a{
    color: white;
    text-decoration: none;
}
li :hover{
    padding-left: 15px;
    font-size: 22px;
    color: rgb(228, 233, 135);
}