body{
    margin: 0;
    padding: 0;
    font-size: 20px;
}

marquee{
    color: #eeff00;
    font-size: 25px;
    text-shadow: 1px 2px 3px cyan;
}
q:lang(no){
    quotes: "😍" "😍";
}

.stk{
    width: 350px;
}
.stk::after{
    content: "";
    background-image: linear-gradient(#ff0000, orange);
    width: 0%;
    height: 5px;
    display: block;
    transition: 1s;
    
}
.stk:hover::after{
    width: 100%;
}

.banner{
    background: url(https://cdn.pixabay.com/photo/2014/11/16/15/15/field-533541__340.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    text-align: justify;
    padding: 5px;
    overflow: hidden;
}
.second{
    background-image: linear-gradient(#12c2e9, #c471ed, #f64f59);
    border: 10px solid #00fff2;
    text-align: justify;
    text-transform: capitalize;
    padding: 5px;
}

.second-banner .text{
    margin-top: 100px;
    margin-left: 50px;
    line-height: 40px;
}
.second-banner{
    background: linear-gradient( to left, #00000000, #0088f7b2 85%), url(https://cdn.pixabay.com/photo/2014/02/28/16/45/mountains-276995__340.jpg);
    overflow: hidden;
    background-attachment: fixed;
    background-repeat: no-repeat;
    position: relative;
    background-size: cover;
    width: 100%;
    height: 650px;
}

.border{
    display: flex;
    justify-content: space-around;
}
.box1{
    background-color: lawngreen;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-left: 12px solid blue;
}
.box2{
    background-color: #00fcc5;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-right: 12px solid;
    border-image: linear-gradient(blue, yellow);
    border-image-slice: 10;
}
.box3{
    background-color: #c5fc00;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 12px solid blue;
}
.box4{
    background-color: #d200fc;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-top: 12px solid blue;
}

.zahid{
    max-width: 800px;
    height: 200px;
    background: brown;
    color: #ffff;
}
.hasan{
    width: 800px;
    height: 200px;
    background: chartreuse;
    color: #000000;
}

.positioning, .boxx1{
    width: 500px;
    height: 300px;
    background-color: aqua;
    position: relative;
    border-right: 15px solid;
    border-image: linear-gradient(#1145f1, #7cf519, #fc00ff, #cfde00);
    border-image-slice: 5;
}
.positioning, .boxx2{
    width: 250px;
    height: 100px;
    background-color: #1900ff;
    color: whitesmoke;
    position: absolute;
    bottom: 0px;
    right: 0px;
}

.block{
    color: #1900ff;
    width: 100%;
    height: 100px;
}
.myp{
    display: none;
}
.block:hover .myp{
    display: block;
}

.overflow{
    background: #54565a;
    height: 300px;
    overflow: scroll;
    margin: 10px;
    padding: 10px 20px;
    text-align: justify;
    color: #0ccf0c;
}

.pseudo{
    background-color: #000000;
    color: #ffff;
}
.pseudo-element::first-letter{
    font-size: 50px;
    background: #1900ff;
    color: #dfdfdf;
}
.pseudo-element::first-line{
    color: #cefc00;
}

.list{
    margin: 20px;
}
::selection{
    background-color: black;
    color: whitesmoke;
}
::marker{
    color: blue;
    font-size: 50px
}

.opacity img{
    opacity: 0.1;
}
.opacity img:hover{
    opacity: 1;
}