زر 3D بإستخدام CSS لمدونات بلوجر

.a_demo_two {
    background-color:#6fba26;
    padding:10px;
    position:relative;
    font-family: 'Open Sans', sans-serif;
    font-size:12px;
    text-decoration:none;
    color:#fff;
    background-image: linear-gradient(bottom, rgb(100,170,30) 0%, rgb(129,212,51) 100%);
    box-shadow: inset 0px 1px 0px #b2f17f, 0px 6px 0px #3d6f0d;
    border-radius: 5px;
}

.a_demo_two:active {
    top:7px;
    background-image: linear-gradient(bottom, rgb(100,170,30) 100%, rgb(129,212,51) 0%);
    box-shadow: inset 0px 1px 0px #b2f17f, inset 0px -1px 0px #3d6f0d;
    color: #156785;
    text-shadow: 0px 1px 1px rgba(255,255,255,0.3);
    background: rgb(44,160,202);
}
.a_demo_two::before {
    background-color:#072239;
    content:"";
    display:block;
    position:absolute;
    width:100%;
    height:100%;
    padding-left:2px;
    padding-right:2px;
    padding-bottom:4px;
    left:-2px;
    top:5px;
    z-index:-1;
    border-radius: 6px;
    box-shadow: 0px 1px 0px #fff;
}

.a_demo_two:active::before {
    top:-2px;
}

<a class="a_demo_two" href="http://www.demoo.madad2.com/" rel="nofollow" target="_blank"><span style="font-size: large;"><b>انقر للمشاهدة!</b></span></a>

<a class="a_demo_two" href="http://www.demoo.madad2.com/" rel="nofollow" target="_blank"><span style="font-size: large;"><b>انقر للمشاهدة!</b></span></a>
<style>
.a_demo_two {
    background-color:#6fba26;
    padding:10px;
    position:relative;
    font-family: 'Open Sans', sans-serif;
    font-size:12px;
    text-decoration:none;
    color:#fff;
    background-image: linear-gradient(bottom, rgb(100,170,30) 0%, rgb(129,212,51) 100%);
    box-shadow: inset 0px 1px 0px #b2f17f, 0px 6px 0px #3d6f0d;
    border-radius: 5px;
}

.a_demo_two:active {
    top:7px;
    background-image: linear-gradient(bottom, rgb(100,170,30) 100%, rgb(129,212,51) 0%);
    box-shadow: inset 0px 1px 0px #b2f17f, inset 0px -1px 0px #3d6f0d;
    color: #156785;
    text-shadow: 0px 1px 1px rgba(255,255,255,0.3);
    background: rgb(44,160,202);
}
.a_demo_two::before {
    background-color:#072239;
    content:"";
    display:block;
    position:absolute;
    width:100%;
    height:100%;
    padding-left:2px;
    padding-right:2px;
    padding-bottom:4px;
    left:-2px;
    top:5px;
    z-index:-1;
    border-radius: 6px;
    box-shadow: 0px 1px 0px #fff;
}

.a_demo_two:active::before {
    top:-2px;
}
</style>