CSS Review And Download Button

#wrap {
margin: 20px auto;
text-align: center;
}
.btn-slide, .btn-slide2 {
position: relative;
display: inline-block;
height: 50px;
width: 200px;
line-height: 50px;
padding: 0;
border-radius: 50px;
background: #fdfdfd;
border: 2px solid #0099cc;
 margin: 10px;
 transition: .5s;
}
 .btn-slide2 {
 border: 2px solid #efa666;
}
 .btn-slide:hover {
 background-color: #0099cc;
}
.btn-slide2:hover {
background-color: #efa666;
}
 .btn-slide:hover span.circle, .btn-slide2:hover span.circle2 {
 left: 100%;
 margin-left: -45px;
 background-color: #fdfdfd;
color: #0099cc;
}
 .btn-slide2:hover span.circle2 {
 color: #efa666;
}
 .btn-slide:hover span.title, .btn-slide2:hover span.title2 {
 left: 40px;
 opacity: 0;
}
 .btn-slide:hover span.title-hover, .btn-slide2:hover span.title-hover2 {
 opacity: 1;
 left: 40px;
}
 .btn-slide span.circle, .btn-slide2 span.circle2 {
display: block;
background-color: #0099cc;
color: #fff;
position: absolute;
float: left;
margin: 5px;
line-height: 42px;
height: 40px;
width: 40px;
top: 0;
left: 0;
transition: .5s;
border-radius: 50%;
}
 .btn-slide2 span.circle2 {
 background-color: #efa666;
}
 .btn-slide span.title, .btn-slide span.title-hover, .btn-slide2 span.title2, .btn-slide2 span.title-hover2 {
position: absolute;
left: 90px;
 text-align: center;
 margin: 0 auto;
 font-size: 16px;
 font-weight: bold;
 color: #30abd5;
 transition: .5s;
}
 .btn-slide2 span.title2, .btn-slide2 span.title-hover2 {
 color: #efa666;
 left: 80px;
}
 .btn-slide span.title-hover, .btn-slide2 span.title-hover2 {
 left: 80px;
 opacity: 0;
}
 .btn-slide span.title-hover, .btn-slide2 span.title-hover2 {
 color: #fff;
}