* {
    box-sizing: border-box;
}
body {
    margin: 0px;
}
#mainDiv {
    background-image: url('https://i.ytimg.com/vi/I-hdhl2L7vM/maxresdefault.jpg');
    background-attachment: fixed;
    background-size: cover;
}
.filter {
    background-color: rgba(0, 0, 0, 0.7)
}
#worksForYou:hover {
    background: orange;
    cursor: pointer;
}
#textWorksForYou {
    margin-top: 8%; 
    margin-bottom: 2%;
}
#icon {
    font-size: 4vh; 
    color: white;
}
#howWork li {
    font-size: 1.15vw;
    color: rgb(97, 97, 97)
}
#textInfo {
    margin: 5% 0;
}
.divX {
    border: 1px solid gray;
    margin-bottom: 5%;
    padding: 0;
}
a:link {
    text-decoration: none;
}
#cause {
    background-image: url('http://hdwallpaperbackgrounds.net/wp-content/uploads/2016/08/Gym-Wallpaper-2.jpg');
    background-attachment: fixed;
    background-size: cover;
}
#causeMini {
    margin: 5% auto;
}
.getInfo {
    position: relative;
}
.getingInfo {
    position: absolute;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.5);
    width: 100%;
    height: 95%;
    border: 15px solid gray;
    opacity: 0.8;
    display: none;
}
.bttn {
    position: relative;
    width: 50%;
    height: 15%;
    border: 1px solid gray;
    border-radius: 5px;
    left: 25%;
}
.bttn span {
    font-size: 21px;
    left: 0;
    top: 0;
    position: absolute;
    color: white;
}
.getInfo:hover .getingInfo {
    display: block;
    cursor: pointer;
}
#thirdBack {
    background-image: url('https://d3h2xv1tt1z2ui.cloudfront.net/production/assets/542/asset/IMG_3189.jpeg');
    background-attachment: fixed;
    background-size: cover;
}
.filter2 {
    background-color: rgba(18, 31, 214, 0.7)
}