.btn_link
{ text-align:center; margin-bottom: 1em; }

.btn_link a
{display:block;
margin: 0 auto;
padding: .5em;
color: #fff;
border-radius:4px;
background-color: rgba(51,153,102,1);
}

.btn_link a:hover
{background-color: rgba(153,0,0,1);
}

.btn_link a:active
{text-decoration: none;
}

.btn_link1
{ text-align:center; margin-bottom: 1em; }

.btn_link1 a
{display:block;
margin: .5em auto;
padding: 0.5em;
color: #fff;
border-radius:4px;
background-color: rgba(255,51,0,1);
}

.btn_link1 a:hover
{background-color: rgba(153,0,0,1);
}

.btn_link1 a:active
{text-decoration: none;
}

.btn_pdf,
.btn_pdf:visited,
.btn_ppt:visited 
{display: inline-block;
padding: 1em 1.5em;
text-decoration: none;
color: #FFF;
border-radius: 10px;
transition: .3s;
line-height: 120%;
background-color: #900;
}




.btn:hover,
.btn_pdf:hover,
.btn_word:hover,
.btn_ppt:hover
{background: #f00;
color: #fff;
text-decoration: none;
}




.btn_word,
.btn_word:visited
{display: inline-block;
padding: 1em 1.5em;
text-decoration: none;
color: #FFF;
border-radius: 10px;
transition: .3s;
line-height: 120%;
background-color: #069;
}


.btn_ppt,
.btn_ppt:visited
{
	display: inline-block;
	padding: 1em 1.5em;
	text-decoration: none;
	color: #FFF;
	border-radius: 10px;
	transition: .3s;
	line-height: 120%;
	background-color: #F63;
}