*{
    margin:0px;
    padding:0px;
}
.one{
    background-color:black;
    
    padding:20px;
    

}
ul,li,h1{
    display:inline;
}
ul{
    margin-left:75%;
    color:gray;
}
#heading{
    color:white;
}
li:hover{
color:white;
cursor:pointer;
}
.two{
      margin-top:30px;
      
      text-align:center;
}
input{
    width:800px;
    height:30px;
}
#heading:hover{
    color:red;
    cursor:pointer;
}
#inputa::placeholder{
    white-space:pre;

font-size:20px;
}
.three{
    text-align: center;
    
}
.img1,.img2,.img3{
display:inline-block;
margin-top:40px;
border-style:solid;
border-color:black;
border-width:1px;
width:200px;
}
.tough:hover{
     color:white;
     background-color:black;
     cursor:pointer;
}
.four{
    margin-top:40px;
}
.five{
    margin-top:30px;
}
.six{
    margin-top:30px;
    background-color:black;

}
.parag{
    margin-top:40px;
}

.parag{
    color:gray;
}
.p{
    color:white;
}